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CSIR-JRF (NET), GATE,
DRDO, BARC, IISC……
INORGANIC CHEMISTRY
How to Learn Periodic Table?
Electronic Configuration of Elements
CHEMISTRY BY H. GAUR
Contact: +91-8946891920
Acharya Institute, 1-K-4, M.N. Extn. Kota
Page 1
1
IA
1
18
0
2
IIA
13
IIIA
14
IVA
15
VA
16
VIA
17
VIIA
He
g
2
Li
Be
B
C
N
O
F
Ne
fy
csVk
csx
a u
dgs
ukuk
vksYM
fQj
us
3
Na
Mg
Al
Si
P
S
Cl
Ar
Ukk
Ekkaxs
vkyq
lhrk
dy
vk
Kr
H
4
K
Ca
dh
dkj
5
Rb
Sr
6
Cs
jc
ls
7
Fr
3
IIIB
4
IVB
5
VB
6
VIB
7
VIIB
Sc
Ti
V
Cr
os
dj
Mn
esua sa
Tc
LdwVj fVUdq
Zr Nb
LdwVj ;kek tjk uokc
Ba La Hf Ta
Ckki ykvks gkQ ragk
Ra Ac Rf Db
Qfj;kn
jks,
Y
,lh
j¶rkj
ls py
Mqcs
La
Ac
8
9
10
VIII
11
IB
12
IIB
ikVsdj LVkby
ghjks
Fe
Co
Ni
Cu
Zn
Ga
Ge
As
Se
Br
fQj
dks
fufdrk
D;ks
tax
xktj
th
,”o;kZ
ls
ckgj
dj
Ru
Rh
Pd
Ag
Cd
In
Sn
Te
I
Xe
ekst VsDuhf”k;u :ddj
W
okbQ
Sg
Sb
lHkh
Bi
Mo
lax
fj
inek
vkt
dc
bu
lquks
Re
Os
Ir
Pt
Au
Hg
Tl
Pb
jsxqyj
vkslkek
;j
fiVj dh vk;k
gksxh
FkSyks esa
izHkq
fcankl
Bh
Òstk
Rg
Cn
Nh
Fl
Mc
gWlk
j?kq
daxk#
ugh
Qy nks
eLr
Hs
Mt
Ds
er yk nq”eu
Vh
vk;k
flDl
Po
At
Rn
iks
vkWVks
ju
Lv
Ts
Og
yoh
VsDlh
vkSj
cuk;s
Ce
Pr
Nd
Pm
Sm
Eu
Gd
Tb
Dy
Ho
Er
Tm
Yb
Lu
lhus
ij
Ufn;kW
izse dh
lekbZ
;w
xnxn
rc
fny
gqvk
;kj
rqe
;w Hkh
yktkokc
Th
Pa
U
Np
Pu
Am
Cm
Es
Fm
Md
No
Lr
fuiVsx
a sa
iqjkusa
vke
de
,sls
Qjekvksa
esM
a e
ukLrk
Ykkvksa
FkksMs igyoku muls
Bk
Cf
fcdsxa sa dsQs esa
Trick for I, II and III Transition Series
Sc
lkbal
Mn
Fe
Co
Ni
Cu
Zn
Vhpj fofurk dqekjh esM
a e
Ti
V
Cr
Qsfo
dkWy
ugh
D;k
tukc
Cd
Y
Zr
Nb
Mo
Tc
Ru
Rh
Pd
Ag
;kjh
tjk
fuHkk
ekSr
rd
:dkoV
jkg
iMs
vkx es
dwn
La
Hf
Ta
W
Re
Os
Ir
Pt
Au
Hg
gksxh
ykvks
g¶
rk
ojuk
js
vkslkek
b/kj
fiVkbZ
vksj
Ac
Rf
Db
Sg
Bh
Hs
Mt
Ds
Rg
Cn
lax Hkkx
gWl
er
nq’V
jÄq
dqnu
,d
j¶rkj nqcs
Electronic Configuration of s-Block Elements
Name
Sym.
Trick
A.N.
Ele. Confi.
Name
Sym.
Hydrogen H
g
1
1s1
Helium
He
Lithium
Li
fy
3
[He] 2s1
Beryllium
Be
Sodium
Na
Ukk
11
[Ne] 3s1
Potassium K
dh
19
Rubidium Rb
jc
Cesium
A.N.
Ele. Confi.
-
2
1s2
csVk
4
[He] 2s2
Magnesium Mg
Ekkaxs
12
[Ne] 3s2
[Ar] 4s1
Calcium
Ca
dkj
20
[Ar] 4s2
37
[Kr] 5s1
Strontium
Sr
LdwVj
38
[Kr] 5s2
ls
55
[Xe] 6s1
Barium
Ba
Ckki
56
[Xe] 6s2
Qfj;kn
87
[Rn] 7s1
Radium
Ra
jks,
88
[Rn] 7s2
Cs
Francium Fr
Trick
Electronic Configuration of p-Block Elements
Name
Sym. Trick A.N.
Boron
B
Ele. Confi.
Name
Sym. Trick A.N. Ele. Confi.
csx
a u
5
[He] 2s22p1
Carbon
C
dgs
6
[He] 2s22p2
Aluminium Al
vkyq
13
[Ne] 3s23p1
Silicon
Si
lhrk
4
[Ne] 3s23p 2
Gallium
Ga
xktj
31
[Ar] 3d104s2 4p1
Germanium Ge
th
32
[Ar] 3d10 4s2 4p2
Indium
In
bu
49
[Kr] 4d10 5s2 5p1
Tin
Sn
lquks
50
[Kr] 4d10 5s2 5p2
Thallium
Tl
FkSyk
81
Lead
Pb
izHkq
82
[Xe] 4f14 5d10 6s2 6p2
ugh
113
[Xe] 4f14 5d10 6s2 6p1
[Rn] 5f14 6d10 7s2 7p1
Flerovium
Fl
Qy nks
Nihonium Nh
Contact: +91-8946891920
114 [Rn] 5f14 6d10 7s27p2
Acharya Institute, 1-K-4, M.N. Extn. Kota
Page 2
Name
Sym. Trick A.N. Ele. Confi.
Nitrogen
N
ukuk
7
[He]
2s22p3
Name
Sym. Trick A.N. Ele. Confi.
Oxygen
O
vksYM
8
[He] 2s22p4
Phosphorus P
ikVsdj
15
[Ne] 3s23p3
Sulfur
S
LVkby
16
[Ne] 3s23p4
Arsenic
As
,”o;kZ
33
[Ar] 3d10 4s2 4p3
Selenium
Se
ls
34
[Ar] 3d104s2 4p4
Antimony
Sb
lHkh
51
[Kr] 4d10 5s2 5p3
Tellurium
Te
Vh
52
[Kr] 4d10 5s2 5p4
Bismuth
Bi
fcankl
83
[Xe] 4f14 5d10 6s2 6p3
[Rn] 5f14 6d10 7s2 7p3
Polonium
Po
iks
84
[Xe] 4f14 5d10 6s2 6p4
yoh
116 [Rn] 5f14 6d10 7s27p4
Ele. Confi.
Name
Sym. Trick A.N. Ele. Confi.
Helium
He
ghjks
Moscovium Mc
Name
eLr
115
Sym. Trick A.N.
Livermorium Lv
2
1s2
Fluorine
F
fQj
9
[He] 2s22p5
Neon
Ne
us
10
[He] 2s22p6
Chlorine
Cl
dy
17
[Ne] 3s23p5
Argon
Ar
vk
18
[Ne] 3s23p6
Bromine
Br
ckgj
35
[Ar] 3d10 4s2 4p5
Krypton
Kr
dj
36
[Ar] 3d104s24p6
Iodine
I
vk;k
53
[Kr] 4d10 5s2 5p5
Xenon
Xe
flDl
54
[Kr] 4d10 5s2 5p6
Astatine
At
vkWVks
Radon
Rn
ju
86
Tennessine Ts
VsDlh
[Xe] 4f14 5d10 6s2 6p5
117 [Rn] 5f14 6d10 7s2 7p5
Oganesson
Og
vkSj
cuk;
118
[Xe] 4f14 5d10 6s2 6p6
[Rn] 5f14 6d10 7s2 7p6
85
Electronic Configuration of d-Block Elements
Name
Sym. Trick A.N.
Ele. Confi.
Name
Sym. Trick A.N. Ele. Confi.
Scandium
Sc
lkbal
21
[Ar] 3d14s2
Yttrium
Y
;kjh
39
[Kr] 4d1 5s2
Titanium
Ti
Vhpj
22
[Ar] 3d24s2
Zirconium
Zr
tjk
40
[Kr] 4d2 5s2
Vanadium
V
fofurk
23
[Ar] 3d34s2
Niobium
Nb
fuHkk
41
[Kr] 4d4 5s1
Chromium
Cr
dqekjh
24
[Ar] 3d5 4s1
Molybdenum Mo
ekSr
42
[Kr] 4d5 5s1
Manganese Mn
esM
a e
25
[Ar] 3d5 4s2
Technetium
Tc
rd
43
[Kr] 4d5 5s2
Iron
Fe
Qsfo
26
[Ar] 3d6 4s2
Ruthenium
Ru
:dkoV
44
[Kr] 4d7 5s1
Cobalt
Co
dkWy
27
[Ar] 3d7 4s2
Rhodium
Rh
jkg
45
[Kr] 4d8 5s1
Nickel
Ni
ugh
28
[Ar] 3d84s2
Palladium
Pd
iMs
46
[Kr] 4d10
Copper
Cu
D;k
29
[Ar] 3d10 4s1
Silver
Ag
vkx es
47
[Kr] 4d10 5s1
Zinc
Zn
tukc
okyh
30
[Ar] 3d10 4s2
Cadmium
Cd
dwn
48
[Kr] 4d10 5s2
Name
Sym. Trick A.N.
Ele. Confi.
Name
Sym. Trick A.N. Ele. Confi.
Actinium
Ac
Lanthanum La
ykvks
57
[Xe]
Hafnium
Hf
gQ
72
[Xe] 4f14 5d2 6s2
Rutherfordium Rf
Tantalum
Ta
rk
73
[Xe] 4f14 5d3 6s2
Dubnium
Tungsten
W
ojuk
74
[Xe] 4f14 5d4 6s2
Rhenium
Re
js
75
Osmium
Os
vkslkek
Iridium
Ir
Platinum
5d16s2
,d
89
[Rn] 6d1 7s2
j¶rkj
104 [Rn] 5f14 6d2 7s2
Db
nqcs
105 [Rn] 5f14 6d3 7s2
Seaborgium
Sg
lax
106 [Rn] 5f14 6d4 7s2
[Xe] 4f14 5d5 6s2
Bohrium
Bh
Hkkx
107 [Rn] 5f14 6d5 7s2
76
[Xe] 4f14 5d6 6s2
Hassium
Hs
gWl
108 [Rn] 5f14 6d6 7s2
b/kj
77
[Xe] 4f14 5d7 6s2
Meitnerium
Mt
er
109 [Rn] 5f14 6d7 7s2
Pt
fiVkbZ
78
[Xe] 4f14 5d9 6s1
Darmstadtium
Ds
nq’V
110 [Rn] 5f14 6d8 7s2
Gold
Au
vksj
79
[Xe] 4f14 5d10 6s1
Roentgenium
Rg
jÄq
111 [Rn] 5f14 6d10 7s1
Mercury
Hg
gksxh
80
[Xe] 4f14 5d10 6s2
Copernicium
Cn
dqnu
112 [Rn] 5f14 6d10 7s2
Contact: +91-8946891920
Acharya Institute, 1-K-4, M.N. Extn. Kota
Page 3
Electronic Configuration of f-Block Elements
Name
Sym. Trick A.N.
Ele. Confi.
Name
Sym. Trick A.N. Ele. Confi.
Thorium
Th
FkksMs
90
[Rn] 6d2 7s2
[Xe] 4f3 6s2
Protactinium
Pa
igyoku
91
[Rn] 5f2 6d1 7s2
Ce
lhus
58
[Xe]
Praseodymium Pr
ij
59
Cerium
4f1 5d16s2
Neodymium
Nd
Ufn;kW
60
[Xe] 4f4 6s2
Uranium
U
muls
92
[Rn] 5f3 6d1 7s2
Promethium
Pm
izse dh
61
[Xe] 4f5 6s2
Neptunium
Np
fuiVsx
a s
93
[Rn] 5f4 6d1 7s2
Samarium
Sm
lekbZ
62
[Xe] 4f6 6s2
Plutonium
Pu
iqjkus
94
[Rn] 5f6 7s2
Europium
Eu
;w
63
[Xe] 4f7 6s2
Americium
Am
vke
95
[Rn] 5f7 7s2
Gadolinium
Gd
xnxn
64
[Xe] 4f7 5d1 6s2
Curium
Cm
de
96
[Rn] 5f7 6d1 7s2
Terbium
Tb
rc
65
[Xe] 4f9 6s2
Berkelium
Bk
fcdsx
a s
97
[Rn] 5f9 7s2
Dysprosium
Dy
fny
66
[Xe] 4f10 6s2
Californium
Cf
dsQs esa
98
[Rn] 5f10 7s2
Holmium
Ho
gqvk
67
[Xe] 4f11 6s2
Einsteinium
Es
,sls
99
[Rn] 5f11 7s2
Erbium
Er
;kj
68
[Xe] 4f12 6s2
Fermium
Fm
Qjekvksa
100 [Rn] 5f12 7s2
Thulium
Tm
rqe
69
[Xe] 4f13 6s2
Mendelevium Md
esM
a e
101 [Rn] 5f13 7s2
Ytterbium
Yb
;w Hkh
70
[Xe] 4f14 6s2
Nobelium
No
ukLrk
102 [Rn] 5f14 7s2
Lutetium
Lu
yktkokc
71
[Xe] 4f14 5d1 6s2
Lawrencium
Lr
Ykkvksa
103 [Rn] 5f14 6d1 7s2
Contact: +91-8946891920
Acharya Institute, 1-K-4, M.N. Extn. Kota
Page 4