bài tập hóa học lớp 10 nâng cao

LE XUAN TRONG (Chu bien)
TCr NGOC ANH - LE
KIM
LONG
I
I
i
NANG CAO
NHA XUAT BAN GIAO DUC VIET NAM

Lfi
XUAN
TRQNG
(Chu bien)
TU NGOC
ANH -
Lfi KIM LONG
Bai tap
HOA HOC
10
NANG
CAO
(Tdi bdn ldn thd tu)
NHA
XUAT
BAN
GIAO
DUC
VI^T
NAM
Chu

thich
cac
tir
viet tat
dd
xt
H2S04d
dktc
1
k
l-l
hs
cht
dung dich
xiic
tac
H2SO4
dac
dieu kien
ti6u
chudn
long
khf
rdn
hoc sinh
c6ng
hoa tri
'
Ban quyen thuoc Nha xuat ban Giao
due

Viet Nam
01-2010/CXB/640-1485/GD
Ma
s6:
NBOO8T0
PHAN
M6T
: CAU HOI VA BAI TAP
ChKcfng
1
NGUYEN TLf
BAI ON TAP
1.1.
Ne'u
chia d6i lien tiep
m6t
vien bi
sSt
de'n khi co duoc phan
tit
nho nha't
con mang
tinh
chat hoa hoc dac trung cua
sat,
phdn
tit
nho nha't nay duoc
goilagi?
1.2. Cho mot mdu nudc da, ne'u

cii
chia
dOi
mdu nu6c da lien tie'p den khi thu
duoc phdn
tit
nho nha't con mang
tinh
chdt hoa hoc dac trung ciia nudc.
Phdn
tit
nho nhdt nay duoc goi la gi ?
1.3. Trong 0,1 mol mu6'i an co bao nhieu phan
tit
NaCl ? Mot luong sdt kim
loai nguyen chdt
chiJa
3,01.10
nguyen tit sat tuong duong vdi bao nhieu
mol nguyen tit sdt ?
1.4.
d
didu kien tieu chudn (dktc)
m6t
mol
khi
chie'm
m6t
thi tich bdng
A. 22,4

ml
B.
22,4dml
C. 22,4
cm^
D. 2,24
cml
Hay chon dap an diing.
1.5. a)
M6t
nguyen tit cacbon co kh6'i lucmg bdng
1,99.10"^^
kg. Hoi
m6t
mol
nguyen tit cacbon co kh6'i luong bdng bao nhieu gam ?
b)
M6t
mol phan tif
C2H5OH
co khdi
lugfng
bdng 46 g. Hoi mot phan tu
C2H5OH CO
khdi luong bdng bao nhieu gam ?
1.6. Hay xac dinh
s6'
mol chat co trong :
a) 14,2 g khf clo ;
b) 10 g canxi

cacbonat;
c) 16 g
Imi
huynh ;
d) 34 g amoniac.
1.7. Tinh s6 mol
HCI
cdn thie't
d^
phan
iing viita
dii
vdi:
a) 20 ml dung dich NaOH 0,1 M ;
b) 5,6 g
sdt;
c) 16 g sdt(III)
oxit;
d) 9,8 g d6ng(II) hidroxit.
1.8. Cho bie't
6
dilu kien tieu chudn (1 atm va
0°C),
kh^i
luong rieng cua nito
bdng
1,25
g/dm^.
Xac dinh phan tif
khO'i

cua nito.
1.9. Cho khdi luong rieng cua ancol etylic
(C2HgOH)
long la 0,80
g/cml
Thi
tich mol cua ancol etylic bdng
A. 57,5
cml
B.
5,75
cml
C. 36,80
cml
D. 3,68
cml
Hay chon dap an diing.
1.10. Cho dong khf CO du di qua 7,2 g d6ng(II) oxit nung nong
or
nhiet dd thfch
hop cho de'n
phan iing
hoan toan thi thu duoc
CO2
va d6ng kim loai. Hay :
a) Tfnh khdi
lugng
d6ng thu
dugc
sau phan

iing.
b) Tfnh the tfch khf CO (of dktc) da tham gia phan
iing.
1.11. Nhiet phan hoan toan 18,8 g mu6'i d6ng(II) nitrat
thi
thu dugc d6ng(II)
oxit, khf
NO2
va khf oxi. Tfnh khdi lugng ddng(II) oxit thu dugc.
1.12. Chgn
cau
diing trong cac
cau
sau
:
A. Trong phan
ihig
hoa hgc sd mol nguyen tit cac nguyen td co mat trong
phan ling khdng thay ddi do cac nguyen td dugc bao toan.
B.
Trong phan
iing
hoa hgc sd mol nguyen tit cac nguyen td co mat trong
phan ling thay doi do cac nguyen td khdng dugc bao toan.
C. Khdi lugng cac nguyen td cd mat trong phan
iing
thay ddi do cac
nguyen td khdng dugc bao
toan.
D.

Sd nguyen tif cac nguyen td cd mat trong phan
iing
thay ddi do cdc
nguyen td' khdng dugc bao toan.
Bail
THANH
PHAN NGUYEN
iCf
1.13. Sir dung sd lieu cho trong (bang 1.1) SGK, hay tfnh va tra ldi cac cau
hoi sau :
a) Khdi lugng cua mdt proton bang bao nhieu ldn khdi lugng cua electron ?
b) Khdi lugng cua electron bdng bao nhidu phdn khdi lugng cua natron ?
c) Nguyen tir heli cd 2 proton, 2 natron va 2 electron. Hoi khdi lugng ciia
cac electron chidm bao nhieu % khd'i lugng nguyen tit ?
1.14. Trong 1 kg sdt cd bao nhieu gam electron ? Cho bidt mdt mol nguyen ti
sdt
CO
khdi lugng bdng 55,85 g, mdt nguydn tit sdt cd 26 electron.
1.15. Cho rdng hat nhan nguydn tit va chfnh nguyen tit H cd dang
hinh
cdu. Hat
nhan nguyen tit hidro cd ban kfnh gdn diing bdng 10 nm, ban kfnh
nguyen tit H bdng 0,053 nm.
a) Hay tfnh va so sanh
th^
tfch cua nguyen tit hidro vdi Xhi tfch cua hat
nhan nguyen tit hidro.
b) Hay tfnh va so sanh khdi lugng rieng cua hat nhan
va
cua nguyen tit

hidro.
Cho bie't cdng thiic tfnh thi tfch hinh cdu
Id
V = ——- trong dd r la ban
kfnh hinh cdu.
1.16. Cho bie't lu =
1,6605.10"^''
kg, nguyen tit khdi cua oxi bdng 15,999. Hay
tfnh khd'i lugng cua mdt nguydn
tii
oxi ra kilogam.
1.17. Cho bie't khdi lugng nguydn tit cua C gdp
11,905
ldn khdi lugng nguyen
tif cua hidro. Hay tfnh khd'i lugng nguyen tii cua hidro ra u va gam, khi
coi khd'i lugng nguyen tit ciia C bdng
12.
Bai
2
HAT NHAN NGUYEN
T(S
NGUYEN TO HOA HOC
1.18. Nguyen td hoa hgc la
A. nhiing nguyen tii cd ciing dien tich hat nhan.
B.
nhiing nguydn tif cd cung sd khd'i.
C. nhiing nguyen tif cd ciing sd natron.
D.
nhihig
phan tit cd ciing phan

tft
khdi.
Hay chgn cau dung.
1.19. Chi la mdt nguydn td hod hgc dac bidt cd Z = 82, thudng dugc sit dung di
lam tdm chdn phdng xa. Ti le sd
ncrtron/sd
proton trong nguydn tit chi
dugc coi la gidi han
bin
cua hat nhan. Hay
xac
dinh ti
Id
nay trong
nguyen tit cua nguyen td chi ddng vi
^°^Pb
va suy ra dilu kien
bin
cua
cac hat nhan.
1.20. Tdng sd p, n, e trong nguydn tut cua nguydn td X la 10. Sd khd'i
ciia
nguyen tit nguyen td X bdng
A. 3 B. 4 C. 6 D. 7.
Hay chgn gia tri diing.
1.21. Nguydn tft ciia nguyen td X cd tdng sd hat p, n va e bdng 58, s6 hat
proton gdn bdng sd hat natron. Tfnh Z va A cua nguydn td X.
1.22. Nguyen tft
cfta
nguyen td X cd tdng sd hat p, n va e bdng 82, tdng sd hat

mang dien nhilu han tdng sd hat khdng mang dien la 22 hat. Xac dinh Z,
A va vie't kf hieu nguyen tft cua nguyen td X.
1.23. Cho cac nguyen td X, Y, Z. Tdng sd hat p, n va e trong cac nguyen tft
ldn lugt la 16, 58 va 78. Sd natron trong hat nhan va sd hieu nguyen tft
cua mdi nguyen td khac nhau khdng qua 1 dan vi. Hay xac dinh cdc
nguyen td va vidt kf hieu cua cac nguyen td.
1.24. Trong day kf hieu cac nguyen tft sau :
14
»
16t)
15p,
18pj
56x3
56p
17^
20TT 23T
IITJT
7A;
gtJ;
7*^;
gU;
36^;
27^;
8*-';
lO";
111;
IQK
Cac kf hieu nao chi cung mdt nguyen td hoa hgc. Sft dung bang tudn hoan
cac nguyen td hod hgc hay xac dinh cac nguyen td da cho. Cho bilt ten
ggi cua nguyen td, sd hat n, p, e cdu tao ndn 1 nguyen tft cua cac

nguySn
td
vfta
xac dinh.
Bai 3
06NG
VI,
NGUYEN
TCT
KHOI
VA NGUYEN
TQ
KHOI
TRUNG BINH
1.25. Ddng vi la nhiing
A. hgp chdt cd cung dien tfch hat nhan.
B.
nguyen td cd ciing didn tfch hat nhan.
C. nguyen td cd cung sd khd'i A.
D.
nguyen tft cd ciing dien tfch hat nhan va khac nhau vl sd khd'i.
Hay chgn cau dting.
1.26. Trong tu nhien brom cd hai ddng vi
bin
:
35
Br chidm 50,69% sd nguyen tft
81
va
jgBr

chidm
49,31%
sd' nguyen tft. Hay tim nguyen tft khd'i trung binh
cua brom.
1.27. Tfnh nguyen tft khd'i trung binh cua Ni theo sd khd'i cua cac ddng vi trong
tu nhien cua Ni theo sd lieu sau :
iNi;
>i;
fgNi;
^Ni;
f^Ni.
68,27%
26,10% 1,13% 3,59% 0,91%
27
1.28. Mdt nguydn td X cd hai ddng vi vdi ti le sd nguydn tft la —• Hat nhan
nguyen tft X cd 35 proton. Trong nguyen tft cua ddng vi thft nhdt cd
44 natron. Sd natron trong nguyen tft cua ddng vi thft hai nhilu hon trong
ddng vi thft nhdt la 2 natron. Tfnh nguyen tft khd'i trung binh cfta nguyen
tdX(Ax).
1.29. Nguydn td X cd 3 ddng
vila Xj
chie'm
92,23%,
Xj
chidm 4,67% va
X3
chie'm 3,10%. Tdng sd khd'i cua ba ddng vi bdng 87. Sd natron trong
X2
nhilu hon trong
Xj

mdt hat. Nguyen tft khd'i trung binh
cua
X la
Ax = 28,0855.
a) Hay tim
Xj,
X2
va X3.
b) Ndu trong
X,
cd sd natron bdng sd proton. Hay tim sd natron trong
nguyen tft cua mdi ddng vi.
1.30. Cho mdt dung dich chfta 8,19 g mudi NaX tac dung vdi mdt lugng du
dung dich
AgNOj
thu dugc 20,09 g kd't tua.
a) Tim nguyen tft khdi va ggi tdn X.
b) X cd hai ddng vi, gia sft sd nguyen tft cfta ddng vi thft nha't nhilu gdp 3
ldn sd nguyen tft cua ddng vi thft hai. Hat nhan ddng vi thft nha't c6 it hon
hat nhan ddng vi thft hai 2 natron.
Tim
sd khdi cfta mdi ddng vi.
1.31. Cho bidt nguyen tft khd'i trung binh cua iridi la 192,22.
Iridi
trong tu
nhidn cd hai ddng vi la
^77
Ir va
^77
Ir. Hay tfnh phdn tram sd nguydn tft

va phdn tram sd mol gdn dung cho hai ddng vi cua iridi.
1.32. Trong tu nhien agon cd 3 loai ddng vi
bin
vdi
ti
le % nguydn tft la :
?g^Ar JgAr ^Ar
0,337% 0,063% 99,6%
Cho rdng nguydn tft khd'i cua cac ddng vi trung vdi sd' khd'i cua chiing.
The tfch cua 20 g agon (d dktc) bdng
A. 1,121
dml
B.
1,120
dml
C.
11,2146 dml
D.
11,200 dml
Hay chgn phuang an dung.
1.33. Trong tu nhien oxi cd ba ddng
vi:
^|o
;
^gO
;
^gO;
Cacbon cd hai ddng vi
la:
gC

;
gC.
Hoi cd thd cd bao nhidu loai phan
tft
khf cacbonic hgp thanh
tft cac ddng vi trdn ? Vid't cdng thftc phan tft va tfnh phan tft khdi
cfta
chiing.
1.34. Trong tu nhidn ddng vi
j^Cl
chidm 24,23 % sd nguydn tft clo.
Tinh
thdnh
phdn phdn tram vl khd'i lugng
17
Cl cd trong
HCIO4
(vdi H la ddng vi
j
H, O la ddng
vi
^g O)
? Cho nguyen tft khdi trung
binh
cua clo bdng 35,5.
Bai
4
SL;
CHUYEN
DONG

COA
ELECTRON TRONG NGUYEN
TCT.
OBITAN NGUYEN
TCT
1.35. Hay
neu
su khdc biet chfnh trong
vide
md ta chuydn ddng cua cdc
electron theo md hinh nguydn tft cu va md hinh hidn dai.
8
1.36. Cac chdm trong hinh anh dam may electron hinh cdu trong nguydn tft
hidro
(hinh
1.7 SGK) cd phai la hinh anh cfta mdt electron khdng ?
Giai thfch.
1.37. Chuydn
ddng
cfta electron trong nguydn tft hidro cd thd tao ra cdc obitan s
vd p trong dilu kidn nao ? Giai thich.
1.38. Phan biet hinh dang va su dinh hudng cfta cac obitan s va p.
1.39. Ban kfnh nguydn tft cfta hidro (0,0529 nm) ldn hon ban kfnh nguyen tft
cua heli
(0,0128nm)
do nguyen nhan gi ? Giai thfch bdng khai niem
obitan nguydn tft.
1.40*. Obitan nguydn tft la gi ? Obitan nguyen tft cd gidi han hay khdng ?
Bai 5
LUYEN TAP

V^
: THANH PHAN CAU TAO NGUYEN
TCT.
KHOI LLTONG
CClA
NGUYEN
TCT.
OBITAN NGUYEN
TCT
1.41. Tdng sd nguydn tft trong
0,01
mol phan tft mudi amoni nitrat bdng
A.
5,418.10^1
B.
5,418.10^\
C.
6,02.10^1
D.
3,01.10^1
Hay chgn dap an dung.
1.42. Nguydn tft la phdn tft nho nhdt cua chdt
A. khdng mang didn. B. mang didn tfch duang.
C. mang dien tfch am. D. cd
thi
mang didn hoac khdng mang dien.
Hay chgn dap dn dung.
1.43. Sd hidu nguyen tft cho bidt
A. sd proton trong hat nhan nguyen tft hay sd don vi dien tfch hat nhan
nguyen tft.

B.
sd electron trong v6 nguyen tft.
C. sd thft tu cua nguyen td trong bang tudn hoan.
D.
tat ca A, B va C.
Hay chgn phuang an dung nhdt.
1.44.
Cac
nguyen
td hoa hgc cd ti le sd
notron/sd
proton
ldn han 1,5244
(trong
nguydn
tft
cfta ddng
vi
^°^Pb)
thudng khdng
bin
va tu
phan
huy
thanh
cac
nguyen
td
khdc.
a)

Dua vao
bang tudn hoan
hay xac
dinh
ti
Id
sd
natron/sd proton
cua cac
nguyen
td cd sd
hidu nguyen
tft
bdng
90,
91,
92.
b)
Cac
nguyen
td nay cd
bin
khdng
?
1.45.
Coi
nguyen
tft flo
(^gF)
nhu la mdt

khd'i
cdu cd
dudng
kfnh
bdng
1,00.10"^
nm va hat
nhan
cd
dudng kfnh bdng
1,00.10 nm. Hay
tfnh
:
a) Khd'i lugng
hat
nhan nguyen
tft flo (kg) dua vao
bang
1.1
trong
SGK.
b)
Ti le
thi
tfch
cua
nguyen
tft flo va
thi
tfch cfta

hat
nhan.
c) Tfnh khd'i lugng rieng cfta
hat
nhan nguyen
tft flo.
1.46. Trong
tu
nhien silic
tdn tai vdi ham
lugng
cac
ddng
vi :
j4Si
la
92,23%,
f^Si
la 4,67% va
Jjsila
3,10%. Tfnh nguydn
tft
khd'i trung binh
cfta silic.
Bai
6
LdP
VA
PHAN
L6P

ELECTRON
1.47. Trong
mdt ldp
electron
cd bao
nhidu phan
ldp
electron
? Hay cho
bilt
cac
kf hidu
chi
phan
ldp
electron.
1.48.
Cac
obitan trong
mdt
phan
ldp
khac nhau
nhu thd
nao
?
1.49.
Hay xac
dinh
sd

obitan cfta
ldp M.
1.50.
Hay xac
dinh
sd
obitan
cd
trong phan
ldp p va
phan
ldp d.
1.51. Electron
2p
thudc
vl ldp va
phan
ldp nao ? Ve
hinh dang
cua
obitan
m6
ta electron
nay.
10
Bai
7
NANG
LapNG
COA

CAC ELECTRON TRONG NGUYEN
TCT
CAU
HlNH
ELECTRON NGUYEN
TQ
1.52. Hay vidt kf hieu dl
chi
phan ldp electron vdi electron cud'i ciing d :
a) Ldp thft 2, phan ldp s va electron la ddc than.
b) Ldp thft 2, phan ldp p, d lugng tft thft 2 (tft trai sang) va electron la
ddc than.
c) Ldp thft
3,
phan ldp
p,
d lugng tft thft 2 (tft trai sang) va electron la cap ddi.
1.53. Hay giai thfch su sdp xdp cdc electron vao cac obitan trong nguyen tft nito
(Z = 7) di minh hoa cho cac nguyen
If
viing
bin,
nguyen
If
Pau-li va quy
tdc Hun.
1.54. Hay giai thich va so sdnh viec sdp xdp electron vao cac d lugng tft va vao
cac obitan theo mftc nang lugng.
1.55. Thd nao la cdu hinh electron ? Phan biet cdu hinh electron va
thft

tu sdp
xdp electron theo mftc nang lugng. Ldy thf du minh hoa.
1.56. Vie't cdu hinh electron nguyen tft cua cac nguyen td sau :
gC;
gO ;
iiNa;
13AI;
17CI;
20^3-
1.57. Sft dung bang tudn hoan, hay xac dinh cac nguyen td va vidt cdu hinh
electron nguydn tft dudi dang d lugng tft ndu cho bidt sd electron cfta cac
nguyen tft tren tftng ldp nhu sau :
a) 2, 2 ; b) 2, 5 ; c) 2, 8, 5 ;
d)2,
8, 3; d)2, 8,7; e) 2, 8, 8, 2.
1.58. a) Cdu hinh electron ldp ngoai cung cfta nguyen tft nguyen td' X dugc
phan bd nhu sau :
n
1111
f
2s^
2p^
Sd hieu nguyen tft va kf hieu cfta nguyen td X la
A. 5, B B.7,N C. 8, O D. 9, F.
Chgn ddp an dung.
11
b) Cdu hinh electron ldp ngoai cung cua nguydn tft nguydn td Y dugc
phan bd nhu sau :
I I !
D.

16, S.
3s"
,
3p*
Sd hidu nguydn tft va kf hidu cua nguydn td' Y la
A. 4, Be B. 6, C C. 7, N
Chgn dap an dung.
1.59. Neu khuynh hudng bidn ddi sd electron d ldp
ngoai
cung cua nguydn tft
cac nguyen td hod hgc khi sd hidu nguydn tft tang ddn ?
1.60. Cho cac nguydn td' cd sd hidu
nguydn
tft tft 1 ddn 36, nguydn tft cua cac
nguydn td cd :
a) 8 electron d ldp ngoai cung la :
A. Ne, Ar, Kr ; B. Ne, Ar, Fe ; C. Ne, Ar, Fe, Kr ; D. Ar, Fe, Kr.
Hay chgn dap an dung.
b) 2 electron d ldp ngoai cung la :
A. He, Be, Mg.
B.
He, Be, Mg vd 8 nguydn td nhdm B tft Sc ddn Zn (trft Cr va Cu).
C. 8 nguydn td nhdm B tft Sc ddn Zn (trft Cr va Cu).
D.
He, Be, Mg va 10 nguydn td nhdm B tft Sc ddn Zn.
Hay chgn dap an dung.
1.61. Hay vid't cdu hinh electron nguydn tft ddy du va cho bidt sd hidu
nguyfin
tft cfta cac nguydn td cd ldp electron ngoai cung nhu sau :
a)

2s'
;
d)
3s^
3p*
b)
2s^
2p^
e)
3s^
3p'^
c)
2s^
2p^
;
f)
3s^
3p^
d)3s'
Bai
8
LUY$N TAP CHUONG 1
1.62. Vidt cdu hinh electron nguydn tft cua magie (Z = 12), photpho (Z = 15) vd
cho bidt nguydn td nao la kim loai, nguydn td nao la phi kim ?
12
1.63. Trong sd cdc cdu hinh electron nguyen tft sau, cdu hinh electron nao la
cfta nguyen tft oxi (Z = 8).
A.
Is^
2s^

2p^
; B.
Is^
2s^
2p'^;
C.
Is^
2s^
2p'^;
D.
Is^
2s^
2p^
Hay chgn phuang an dung.
1.64. Nguyen tft cfta nguyen td P (Z = 15) cd sd electron ddc than bdng
A. 1. B. 2. C. 3. D. 4.
Hay chgn dap an dung.
1.65. Nguyen tft R mdt di 1 electron tao ra cation
R"^
cd cdu hinh electron
nguyen tft d phan ldp ngoai cung la 2p . Vidt cdu hinh electron nguyen
tft va su phan bd electron theo obitan cfta nguydn tft R.
1.66.
Chi
dua vdo cdu hinh electron nguyen tft cfta cdc nguyen td cd Z bdng 9,
11,
16 va 20 hay xdc dinh nguyen td nao la kim loai, nguyen td nao la
phi kim.
1.67*.
Trong phan tft

MjX
cd tdng sd hat (p, n, e) la 140 hat, trong dd sd hat
mang dien nhilu han sd hat khdng mang didn la 44 hat. Sd khd'i cfta
nguyen tft M ldn hon sd khd'i cfta nguyen tft X la 23. Tdng sd hat (p, n, e)
trong nguyen tft M nhilu hon trong nguyen tft X la 34 hat. Vidt cdu hinh
electron cua cac nguyen tft M va X. Vidt cdng thftc phan tft cfta hgp chdt.
1.68*. Hgp chdt Y cd cdng thftc
MX2
trong dd M chidm 46,67% vl khd'i lugng.
Trong hat nhan M cd sd natron nhilu hon sd proton la 4 hat. Trong hat
'
nhan X sd natron bdng sd proton. Tdng sd proton trong
MX2
la 58.
a) Tim
Aj^
va
Ax-
b) Xac dinh cdng thftc phan tft cua
MX2.
13
Chuang 2 •
BANG TUAN HOAN CAC NGUYEN TO HOA HOC
VA DINH LUAT TUAN HOAN
Bai 9
BANG TUAN
HOAN CAC NGUYEN TO HOA HOC
2.1.
Hay cho bidt y nghia cua mdt d nguyen td trong bang tudn hoan ?
2.2.

Cac nguyen td trong bang tudn hoan dugc xdp theo chiiu tang ddn sd dofn
vi didn tfch hat nhan. Thdng thudng nguyen tft khd'i trung binh ciing tang
ddn. Tuy nhien cd mdt sd ngoai le : Nguyen td diing trudc cd nguyen tft
khd'i trung binh ldn hon nguyen td diing sau. Sft dung bang tudn hoan,
hay tim mdt sd nguyen td dac bidt nay.
2.3.
Cd
thi
dinh nghia chu ki theo su thay ddi sd electron dugc khdng ? Giai thfch.
2.4. Sd nguyen td trong cac chu ki cfta bang tudn hoan cd gid'ng nhau khdng ?
Ddu hieu nao cho bidt mdt chu ki kdt thuc ?
2.5.'
Dua vao cdu hinh electron hay giai thfch vi sao chu ki 3 chi cd 8 nguyen td.
2.6.
Khdi cac nguyen td gdm cac nhdm nao ? Khd'i nguyen td cdn cd the dugc
ggi la cac nhdm gi ?
2.7.
Su phan bd electron theo ldp trong nguyen tft cfta ba nguyen td nhu sau :
X:2,
8, 1 ; Y : 2, 8, 7 ; Z : 2, 8, 8, 2.
Hay xac dinh vi trf cac nguyen td nay trong bang tudn hodn.
Bai
10
SL;
BIEN
001
TUAN HOAN CAU HINH ELECTRON NGUYEN
l(S
COA
CAC

NGUYEN l6 HOA HOC
2.8.
Ldm thd nao dl phan bidt cac nguydn td nhdm A
va
nguydn td nhdm B
theo cdu tao ldp vd nguydn tft ?
14
2.9.
Cac nguyen td nhdm A va nhdm B cd cung sd thft tu nhdm cd dac diem gi
gid'ng va khac nhau ? Ldy thf du nguyen td
C
va Ti dl minh hoa.
2.10. Vi trf cua nguyen td trong bang tudn hoan cd lien he gi vdi cdu tao ldp vd
nguyen tft cfta nguyen td dd. Giai thfch va
neu
thf du minh hoa.
2.11.
Cho hai nguyen td X va Y d hai d lien tidp trong mdt chu ki cua bang
tudn hoan va cd tdng sd proton bdng 27. Hay viet cdu hinh electron
nguyen tft va xac dinh vi trf cua chung trong bang tudn hoan.
2.12.
Oxit cao nhdt cfta mdt nguydn td nhdm VIA chfta 60 % oxi vl khd'i lugng.
Hay xac dinh nguyen td va vidt cdu hinh electron nguyen tft cfta nguyen td dd.
2.13.
Trong chu ki 2 sd electron ldp ngoai cung thay ddi nhu thd nao ?
2.14. Hay ndu su bidn ddi tudn hoan cdu hinh electron nguyen tft trong bang
tudn hoan.
2.15. Cho hai nguyen td hoa hgc cd cdu hinh electron nguyen tft la :
-1-
Nguyen tft X :

Is^
2s^
2p^
3s^
+ Nguyen tft Y :
Is^
2s^
2p^
3s^
3p^
3d^
4s^
a) Hdi chung cd d trong cung mdt nhdm nguyen td khdng ? Hay giai thfch.
b) Hai nguyen td nay
each
nhau bao nhieu nguyen td hoa hgc ? Cd ciing
chu ki khdng ?
Bai
11
SU BIEN
001
MOT SO
OAI
LUONG
VAT
LI
COA
CAC
NGUYEN TO HOA HOC
2.16. Hay cho bidt dai lugng nao dudi day cfta cac nguyen td bidn ddi tudn

hoan theo chiiu tang cfta didn tfch hat nhan
:
A. Sd ldp electron.
B.
Sd electron d ldp ngodi cung.
C.
Nguydn tft khdi.
D.
Sd electron trong nguydn tft .
15
2.17. Dua trdn cac
dft
kidn cho dudi day :
Nguyen
td Na Mg Al Si P S
Cl
TnguyentftCnm)
0,157 0,136 0,125 0,117 0,110 0,104 0,099
Hay giai thfch su bidn ddi ban kfnh nguydn tft cua cdc nguydn td.
2.18.
Bdn
kfnh nguyen tft cua cac nguydn td
Be,
F, Li va
Q
tang ddn theo thft tu
sau:
A. Li < Be < F <
Cl;
B. F < Be < Cl <

Li;
C. Be < Li < F <
Cl;
D. Cl < F < Li < Be.
Dua vao sd lidu cho d hinh
2.1
SGK, hay chgn phuang an dung.
2.19. Ban kfnh cac ion cd cung cdu hinh electron ti
Id
nghich vdi didn tich hat
nhan cfta nguydn tft. Cac ion Na , Mg , F , O
diu
cd cung cdu hinh
'y 'y
A
electron
Is
2s 2p . Sft dung bang tudn hoan xac dinh sd hidu nguydn tft
va chgn day cdc ion cd ban kfnh giam ddn :
A.
Na^
>
Mg^""
>
F~
>
0^~.
B.
Mg^^
>

Na""
>
F"
>
O^'.
C.
F"
>
Na*
>
Mg^""
>
O^".
D.
0^~
>
F~
>
Na"^
>
Mg^^
Hay chgn dap an dung.
2.20. Cac nguyen td Na, Mg, Si, C dugc sdp xdp theo chiiu giam ddn nang
lugng ion hoa thft
nhdt:
A. C>Si>Mg>Na; B. Si > C > Mg > Na ;
C. C>Mg>Si>Na; D. Si > C> Na> Mg.
Dua vao sd lieu cho d bang 2.2 SGK, hay chgn dap an dung.
2.21.
Cac nguyen td

Mg,
Al,
B
va C dugc sdp xdp theo thft tu tang ddn dd am
dien:
A. Mg<B<Al<C; B. Mg < Al < B < C ;
C. B < Mg < Al < C ; D. Al < B < Mg < C.
Dua vao sd lieu cho d bang
2.3
SGK, hay chgn dap an dung.
2.22. Hai nguyen td X va Y d hai nhdm A lien tidp trong bang tudn hodn,
X thudc nhdm V.
6
trang thai don chdt X va Y khdng phan ting vdi nhau.
Tdng sd proton trong hat nhan X va Y bdng 23. Xdc dinh hai nguydn td
va vidt cdu hinh electron nguydn tft cfta chung.
16
Bai 12
sa BI^N 061
TINH KIM LOAI
TiNH PHI KIM
COA
CAC
NGUYEN TO HOA HOC.
DINH LUAT
TUAN HOAN
2.23.
So sdnh tfnh kim loai cfta cdc cap nguydn td sau vd giai thfch ngdn ggn :
a) Kali va
natri;

b) Natri va nhdm ;
c) Nhdm vd kali.
2.24. So sanh tfnh phi kim trong tftng cap nguyen td sau va giai thfch ngdn ggn :
a) Cacbon va silic ;
b) Clo vd
liru
huynh
;
c) Nita va silic.
2.25.
Hoa tri cfta nguydn td' hod hgc la gi ? Hay ndu su bidn ddi hoa tri cfta cac
nguydn td hod hgc trong chu ki 2.
2.26. Hay
neu
su bidn ddi tfnh chdt axit - bazo cua cdc oxit va hidroxit cfta cac
nguyen td trong chu ki 3 khi di tft trai sang phai.
2.27.
So sdnh tfnh baza cfta cac hidroxit trong mdi day sau va cd giai thfch
ngdn ggn
:
a) Canxi hidroxit, stronti hidroxit, bari
hidroxit;
b) Natri hidroxit va nhdm
hidroxit;
c) Canxi hidroxit va xesi hidroxit.
2.28.
Hay so sdnh tfnh axit cfta cdc chdt trong mdi day sau va giai thfch ngdn ggn :
a) Axit cacbonic va axit silixic ;
b) Axit silixic, axit photphoric, axit sunfuric.
2.29. Hay vidt cdc phuang trinh hod hgc cua cdc

phan
ftng gifta cdc oxit sau vdi
nudc (ndu cd) :
NajO,
SO3,
CI2O7,
COj,
CaO,
N2O5
va nhan xet vl tfnh
chdt axit - bazo cua san phdm.
2.BT
H6AHOCIO.NC-A
17
Bai 13
y
NGHTA
COA
BANG
TUAN
HOAN CAC NGUYEN TO HOA HOC
2.30. Cac nguyen td thudc chu ki 2
cd
thd tao thanh cation dan nguydn tft :
A. Li, Be, B, C va N ; B. Li, Be, C, N va O ;
C. Li,
BevaB;
D. N, O, F va Ne.
Hay chgn dap an dung.
2.31.

Cdc nguydn td thudc chu ki 3 cd
thi
tao thanh anion don nguyen tft :
A. Al, Si, P, S,
Cl;
B. Si, P, S,
Cl;
C. P, S,C1; D. Mg, Si, P, S, CL
Hay
chgn phuang an dung.
2.32.
Nguyen td Si cd Z =
14.
Cdu hinh electron nguydn tft cua silic la :
A.
Is^
2s^
2p^
3s^
3p^
; B.
Is^
2s^
2p''
3s^
3p^
C.
Is^
2s^
2p^

3s^
3p^
; D.
Is^
2s2
2p^
3s^
3p^
Hay chgn dap an dung.
2.33.
ca'u hinh electron nguydn tft cfta
sdt:
Is^
2s^
2p^
3s^
3p^
3d^
4s^.
Sdt d
A. d 26, chu ki 4, nhdm VIIIA. B. d 26, chu ki 4, nhdm VIIIB.
C. d 26, chu ki 4, nhdm IIA. D. d 26, chu ki 4, nhdm IIB.
Hay chgn phuang an dung.
2.34. Nguyen td photpho d d sd 15, chu ki 3, nhdm
VA
trong bang tudn hoan.
Hay neu tdm tdt tfnh chdt hod hgc cua photpho.
2.35.
Hay cho bidt y nghia cfta do dm dien va su bidn ddi cfta dd dm didn cac
nguyen td trong chu ki 3 va nhdm VIIA.

Bai 14
LUYEN TAP CHLTONG 2
2.36. Mdt nguyen td X cd Z = 20. Hay vidt cdu hinh electron cfta X,
X^"*".
X
Id
nguyen td gi, thudc chu ki nao, nhdm ndo, la kim loai hay phi kim ?
18
2.BT
HOAHOCIO.NC-B
2.37.
Cho nguydn td sdt d d thft 26, cdu hinh electron cfta ion Fe
"^
la :
A.
Is^
2s^
2p^
3s^
3p^
3d^
; B.
Is^
2s^
2p^
3s^
3p^
3d^
4s'
C.

Is^
2s^
2p^
3s^
3p^
; D.
Is^'
2s^
2p^
3s^
3p^
3d^
Hay chgn ddp an dung.
2.38.
Cho nguyen td' luu huynh d d thft 16, cd'u hinh electron cua ion S la :
A.
ls^2s^2p^;
B.
Is^
2s^
2p^
3s^
3p^
3d^
C.
Is^
2s^
2p^
3s^
Sp"*;

D.
Is^
2s^
2p^
3s^
3p^
Hay chgn phuong an dung.
2.39. A va B la hai nguyen td trong cung mdt nhdm va d hai chu ki lien tidp
cfta bang tudn hoan. Tdng sd proton trong hat nhdn cua hai nguyen tft A
va B bdng 32. Hai nguyen td dd la :
A. Mg va Ca ; B. O va S
;
C. N va
Si;
D. C va Si.
Hay chgn dap an dung.
2.40. Nguyen td X cd Z = 22. Vidt cd'u hinh electron nguydn tft cfta X, xdc dinh
vi trf cua X trong bang tudn hoan, cho bidt loai nguydn td vd vidt cd'u hinh
electron cfta cdc ion X
"^
va X
'*'.
2.41.
Nguyen td Y cd Z = 18. Vidt cd'u hinh electron nguydn tft cfta Y, xdc dinh
vi trf cua Y trong bang tudn hoan. Cd
thi
cd hgp chd't cfta Y trong dd Y d
dang ion dugc khdng ?
2.42. Cation
R"*"

cd cd'u hinh electron d phdn ldp ngoai cung la 3p .
a) Viet cdu hinh electron nguyen tft cfta nguyen td R.
b) Xdc dinh vi trf cfta nguydn td R trong bang tudn hoan.
c) Tfnh chd't hod hgc dac trung nhd't cua R
Id
gi ? Ldy 2 phan ftng dl
minh hoa.
d) Anion
X~
cd cdu hinh electron gid'ng cdu hinh electron cua cation
R"*".
Hay cho bidt ten vd vidt cdu hinh electron nguyen tft cfta nguyen td X.
2.43.
Cho 4,4 g mdt hdn hgp hai kim loai nam d hai chu ki lien tidp va
diu
thudc nhdm IIA cua bang tudn hoan tdc dung vdi axit
HCI
du thi thu dugc
3,36
dm^
khi hidro d dktc. Hay xdc dinh hai kim loai.
19
Chucmg
3
• —
LIEN KET HOA HOC
Bai 16
KHAI
NIEM VE LIEN KET HOA HOC. LIEN KET ION
3.1.

Trong tu nhidn, cdc khf hidm tdn tai dudi dang nguydn tft tu
do.
Cdc nguyen
tft cfta khf hidm khdng lidn kdt vdi nhau tao thanh phdn tft va khd lidn kdt
vdi cdc nguydn tft cua cdc nguyen td khdc. Ngugc lai cdc nguyen tft cdc
nguydn td khac lai lidn kd't vdi nhau tao thanh phdn tft hay tinh
thi.
Hay
giai thfch nguyen nhdn cfta hien tugng nay.
3.2. Cdu hinh electron ldp ngodi cung cua nguydn tft kali la 4s cdu hinh
2
5
electron ldp ngodi cung cua nguyen tft brom la 4s 4p
a) Lam thd nao cdc nguydn tft kali va brom cd dugc cdu hinh electron cfta
nguyen tft khf hidm ?
b) Lien kdt cfta nguydn tft kali va nguydn tft brom thudc
kilu
lien kdt gi ?
Phdn tft tao thanh cd
bin
han tiing nguydn tft ridng re khdng ?
3.3.
Cdu hinh electron ldp ngoai cung cua nguydn tft flo la 2s 2p Trong cdc
phan ftng hod hgc nguydn tft flo thudng nhdn 1 electron dl tao ion florua.
Hay vidt cd'u hinh electron cua ion florua va cho du doan vl kilu lien
kit
gifia flo vdi kali ?
3.4. Cdu hinh electron ldp ngodi cung cfta nguydn tft canxi la 4s Trong cdc
phan ftng hod hgc nguydn tft canxi thudng cho 2 electron dl tao ion canxi.
Hay vidt cdu hinh electron cua cation canxi va cho du doan vl kilu

liin
kd't gifta canxi vdi flo trong mudi canxi florua ?
3.5.
Cation
R^
cd cdu
hinh
electron phdn ldp ngoai cung la
2p^
Vidt cdu
hinh electron va su phdn bd electron theo obitan nguyen tft cua nguyin tft
R. Cho bidt ban chdt lidn kdt gifta R vdi flo.
3.6. Anion
X~
cd cdu hinh electron phdn
ldp
ngodi cung la
3p^
Hoi X
Id
nguydn td gi ? Vidt cd'u hinh electron nguydn tft cfta nguydn td X. Giai
thfch ban chdt lidn
kit
gifta X vdi bari kim loai.
20
3.7. Trong phdn tft
Na20,
cdu hinh electron cfta cdc nguyen tft cd tudn theo
quy tdc bat tft khdng ? Cho bid't nguyen tft natri cd Z =
11,

oxi cd Z = 8.
3.8*.
Hinh 3.1 SGK ve mdt d mang tinh
thi
mudi NaCl. Mang tinh
thi
mudi
NaCl dugc xdy dung bdng cdch xdp lien tidp cdc d mang vdi nhau. Sd
phdn tft NaCl nguyen ven cd trong mdt d mang tren hinh 3.1 bang :
A. 4; B. 14; C. 5
;
D. 6.
Hay chgn dap sd dung.
Bai 17
LIEN KET CONG HOA TRj
3.9. Thd nao la lien kdt cdng hod tri ? Neu mdt sd thf du vl lien
kit
cdng
hod tri.
3.10. Hay giai thfch nguyen nhdn tao thanh lien kdt cdng hod tri.
3.11.
Phdn tft cfta mdt chd't dugc dac trung bdi
A. khoang cdch trung binh gifta cdc nguyen tft.
B.
gid tri trung binh cfta gdc tao bdi cdc lien kdt.
C. dd
bin
cua lien
kit
va dd

bin
cfta phdn tft.
D.
tdt ca cdc ydu td kl tren.
Hay chgn phuong dn dung.
3.12. Hay giai thich su tao thanh lien
kit
trong phdn tft flo.
3.13.
Md ta su tao thanh lien kdt trong phdn tft HBr theo quan dilm dung chung
electron.
3.14. Trong phdn tft
N2
va NO, nguyen tft nita cd dugc thoa man quy tdc bdt tft
khdng ? Giai thfch. Cho nguyen tft nito cd Z = 7, oxi cd Z =
8.
3.15.
Lidn kdt cdng hod tri phdn
cue
la gi ? Ld'y mdt sd thf du vl loai lidn
kdt nay.
3.16. Thd nao la lidn kd't cho - nhdn. Hay xdc dinh kilu lien kdt cd trong phdn
tftNOj.
21
Bai 18
SL;
LAI HOA CAC OBITAN NGUYEN
lO.
SU HINH THANH
LIEN

KET DON,
LIEN KET
001
VA LIEN KET BA
3.17. Tai sao gdc lidn kd't trong phdn tft
CH4
cd gia tri bdng
109''28'
?
3.18. Thd ndo la lidn kd't
CT,
lidn kdt
71
? Neu
thf
du.
3.19. Hay giai thfch nguyen nhdn lam cho cac phdn tft
BeH2
cd dang thang ?
3.20. Cdc lien kdt trong phdn tft nito dugc tao thanh la do su xen phu cua
A. cac obitan s vdi nhau vd cac obitan p vdi nhau.
B.
3 obitan p vdi nhau.
C. 1 obitan s vd 2 obitan p vdi nhau.
D.
3 obitan p gid'ng nhau vl hinh dang vd kfch thudc nhung
khdc
nhau vl
dinh hudng khdng gian vdi nhau.
Hay chgn dap dn dung.

3.21.
Hinh dang cua phdn tft CH4, BF3,
H2O,
BeH2
tuong ftng la
A. tft dien, tam giac, gdp khuc, thang.
B.
tam gidc, tft dien, gd'p khuc, thang.
C. gdp khuc, tam gidc, tft dien,
thang.
*
D.
thang, tam gidc, tft dien, gdp khuc.
Hay chgn dap dn dung.
3.22. Phdn tft
H2O
cd gdc lien kdt bdng 104,5° do nguyen tft oxi d trang thai
lai hod
A. sp; B. sp ; C.
sp^
; D. khdng xdc dinh dugc.
Hay chgn dap
dn
dung.
3.23.
Hay md ta su lai hod cdc obitan cua nguyen tft nita trong phdn tft
NH3.
3.24.
Hay md ta su tao thanh cdc lien kdt trong phdn tft
C2H2.

22
Bai 19
LUYfN
TAP
V^
: LIEN KET ION. LIEN KET CONG HOA TRL
SLT LAI HOA CAC OBITAN NGUYEN
j(j
3.25.
Lidn kdt trong phdn tft KF thudc vl lidn kdt
A. cdng hod tri. B. cdng hod tri phdn
cue.
C. ion. D. cho - nhan.
Hay chgn phuang an dung.
3.26. Lien kdt don trong phdn tft
Br2
dugc hinh thanh nhu thd nao ?
3.27. a) Trong cdc hgp chdt sau ddy :
LiCl,
NaF,
CCI4
va KBr. Hgp chd't cd lien
kdt cdng hod tri la
A.
LiCl.
B.NaF. C.
CCI4.
D. KBr.
Chgn dap an dung.
b) Cho cdc hgp

chd't
sau ddy :
HCI,
CsF,
H2O
va NH3. Hgp chd't cd lien
kit
ion la
A. HCL B. CsF. C.
H2O.
D. NH3.
Chgn ddp dn dung.
3.28. Cdc lien kdt trong phdn tft
NH3
thudc lien
kit
A. cdng hod
tri.
B. cdng hod tri phdn
cue.
C. ion. D. cho - nhan.
Hay chgn dap an dung.
3.29. Nguyen tft photpho trong PH3 d trang thai lai hod
A. sp. B. sp
.
3
C. sp . D. khdng xac dinh dugc.
Hay chgn ddp dn dung.
3.30. Hay md ta su tao thdnh cdc lien kdt trong phdn tft
C2H5.

3.31.
Hay trinh bay ddc dilm cd'u tao khdng gian cfta phdn tft metan.
3.32. Tai sao nita
la
mdt khi tuang dd'i tro d nhiet dd thudng ?
23