PERIODIC TABLE OF THE ELEMENTS
1
IA
1
1
H
+1
-1
Hydrogen
1.008
3
2
Li
Lithium
6.941
3
Sodium
22.990
K
Potassium
39.098
2881
5
+1
Cs
Cesium
132.905
2 8 18 18 8 1
87
7
+1
Fr
Francium
223.020
2 8 18 32 18 8 1
56
21
+2
Ba
Barium
137.328
39
+3
Y
+2
Ra
Radium
226.025
+4
Ti
23
Titanium
47.867
Zr
57-71
+4
72
Hf
Lanthanoids
Nb
2 8 18 32 10 2
+4
Rf
Actinoids
Rutherfordium
[261]
2 8 18 32 18 8 2
+6
+4
74
W
2 8 18 32 11 2
+5
105
42
Tc
Technetium
98.907
Db
2 8 18 13 2
Re
Rhenium
186.207
2 8 18 32 12 2
2 8 18 32 13 2
+6
Sg
Dubnium
[262]
+4
75
Tungsten
183.84
106
+7
+4
43
2 8 18 13 1
Tantalum
180.948
4
5
6
7
8
Shell Name
K
L
M
N
O
P
Q
R
Max. Electrons
2
8
18 32 32 18
8
2
s
2
2
2
2
2
2
2
2
6
6
6
6
6
6
+7
107
Bh
Seaborgium
[266]
d
10 10 10 10
f
14 14
9
VIIIB
+6
+3
+2
26
Fe
Os
Osmium
190.23
2 8 18 32 14 2
+8
108
Hs
Bohrium
[264]
Hassium
[269]
+3
+3
Pd
Rhodium
102.906
2 8 18 15 1
+4
46
2 8 18 16 1
77
+4
+3
Ir
Iridium
192.217
2 8 18 32 15 2
109
Mt
Meitnerium
[278]
47
Ag
+4
+2
Pt
Platinum
195.085
2 8 18 32 17 1
Zn
79
Au
+3
+1
He
Cd
Gold
196.967
2 8 18 32 18 1
2 8 18 18 2
Hg
Mercury
200.592
2 8 18 32 18 2
+2
112
Darmstadtium
[281]
Roentgenium
[280]
Copernicium
[285]
Cn
81
Tl
Thallium
204.383
2 8 18 32 18 3
113
82
Pb
+4
+2
-4
+5
+3
-3
As
Sb
83
Bi
Lead
207.2
Bismuth
208.980
2 8 18 32 18 4
2 8 18 32 18 5
115
Mc
Fl
Nihonium
[286]
Flerovium
[289]
+3
+3
17
Cl
Se
Br
Moscovium
[289]
36
Kr
53
Polonium
[208.982]
2 8 18 32 18 6
116
Lv
Xe
2 8 18 18 8
+1
-1
85
At
+6
+4
+2
0
Xenon
131.293
2 8 18 18 7
86
Rn
Astatine
209.987
+2
0
Radon
222.018
2 8 18 32 18 7
117
Livermorium
[293]
54
Iodine
126.904
2 8 18 18 6
+4
+2
-2
2 8 18 8
+7
+5
+3
+1
-1
I
+2
0
Krypton
83.798
2 8 18 7
Tellurium
127.6
Po
Argon
39.948
Bromine
79.904
+6
+4
+2
-2
52
84
Ar
288
+5
+3
+1
-1
35
0
18
287
+6
+4
+2
-2
2 8 18 6
+3
28
35.453
34
2 8 18 18 5
+4
+2
S
Te
Neon
20.180
+7
+5
+3
+1
Chlorine -1
Selenium
78.971
+5
+3
-3
Ne
27
+6
+4
+2
-2
286
2 8 18 5
51
F
0
10
Fluorine
18.998
Sulfur
32.066
Antimony
121.760
114
Nh
16
Arsenic
74.922
2 8 18 18 4
+3
+1
P
9
26
+5
+3
-3
33
Tin
118.711
2 8 18 18 3
+2
+1
111
Rg
Sn
In
Indium
114.818
O
2
-1
Oxygen
15.999
285
+4
+2
-4
2 8 18 4
50
8
Helium
4.003
17
VIIA
-2
Phosphorus
30.974
Germanium
72.631
+3
49
Cadmium
112.414
80
Ge
N
15
284
32
+5
+3
-3
25
Silicon
28.086
2 8 18 3
+1
48
2 8 18 18 1
Si
16
VIA
Nitrogen
14.007
+4
-4
14
Gallium
69.723
2 8 18 2
+3
+2
+1
+3
Ga
Zinc
65.38
7
24
+3
31
+4
+2
-4
C
283
+2
15
VA
Carbon
12.011
Aluminum
26.982
110
Ds
B
6
Boron
10.811
30
Silver
107.868
2 8 18 18
78
+2
+1
2 8 18 1
Palladium
106.42
5
12
IIB
Cu
+4
+2
+3
13
Copper
63.546
2 8 16 2
+3
Rh
Ruthenium
101.07
76
Ni
14
IVA
Al
29
Nickel
58.693
2 8 15 2
45
+2
13
IIIA
23
11
IB
28
Cobalt
58.933
+4
+3
Ru
+2
Co
2 8 14 2
44
10
27
Iron
55.845
2 8 13 2
+6
+4
Mo
+5
73
Mn
+7
+4
+2
Manganese
54.938
Molybdenum
95.95
2 8 18 12 1
3
8
25
2 8 13 1
Ta
Hafnium
178.49
89-103 104
Cr
Niobium
92.906
2 8 18 10 2
+6
+3
Chromium
51.996
+5
41
Zirconium
91.224
2 8 18 9 2
V
2
7
VIIB
24
2 8 11 2
+4
40
+5
1
Electron Shell
Configuration
6
VIB
Vanadium
50.942
2 8 10 2
Yttrium
88.906
2 8 18 18 8 2
88
5
VB
22
2892
+2
2 8 18 8 2
+1
+3
Scandium
44.956
2882
38
4
IVB
Sc
Ca
Calcium
40.078
Strontium
87.62
2 8 18 8 1
6
20
+2
Sr
Rb
Rubidium
85.468
55
3
IIIB
Energy Level
p
2 8 18 32 18 1
282
+1
37
12
Magnesium
24.305
281
4
Atomic Mass
+2
+3 Oxidation
+1 States
Gold
196.967
Name
Mg
Na
19
Be
22
+1
Au
Symbol
Beryllium
9.012
21
11
4
+2
0
2
ELECTRON SHELLS
79
Atomic
Number
2
IIA
1
+1
11
IB
Group (IUPAC)
Group (CAS)
18
VIIIA
2 8 18 32 18 8
118
Ts
Og
Tennessine
[294]
Oganesson
[294]
2 8 18 32 32 10 2 2 8 18 32 32 11 2 2 8 18 32 32 12 2 2 8 18 32 32 13 2 2 8 18 32 32 14 2 2 8 18 32 32 15 2 2 8 18 32 32 16 2 2 8 18 32 32 17 2 2 8 18 32 32 18 2 2 8 18 32 32 18 3 2 8 18 32 32 18 4 2 8 18 32 32 18 5 2 8 18 32 32 18 6 2 8 18 32 32 18 7 2 8 18 32 32 18 8
©2019 sciencenotes.org
Lanthanoids 57
+3
La
Lanthanum
138.905
2 8 18 18 9 2
Actinoids 89
+3
Ac
Actinium
227.028
2 8 18 32 18 9 2
58
Ce
+4
+3
Cerium
140.116
2 8 18 19 9 2
90
+4
Th
Thorium
232.038
2 8 18 32 18 10 2
59
+3
Pr
Praseodymium
140.908
2 8 18 21 8 2
91
+5
Pa
Protactinium
231.036
2 8 18 32 20 9 2
60
Nd
Neodymium
144.243
2 8 18 22 8 2
92
+6
U
Uranium
238.029
2 8 18 32 21 9 2
61
Pm
Promethium
144.913
2 8 18 23 8 2
93
+5
Np
Neptunium
237.048
2 8 18 32 22 9 2
62
+3
Sm
Samarium
150.36
2 8 18 24 8 2
94
+4
Pu
Plutonium
244.064
2 8 18 32 24 8 2
63
Eu
+3
+2
Europium
151.964
2 8 18 25 8 2
95
+3
Am
Americium
243.061
2 8 18 32 25 8 2
64
+3
Gd
Gadolinium
157.25
2 8 18 25 9 2
96
+3
Cm
Curium
247.070
2 8 18 32 25 9 2
65
+3
Tb
Terbium
158.925
2 8 18 27 8 2
97
+3
Bk
Berkelium
247.070
2 8 18 32 27 8 2
66
Dy
Dysprosium
162.500
2 8 18 28 8 2
98
+3
Cf
Californium
251.080
2 8 18 32 28 8 2
67
Ho
Holmium
164.930
2 8 18 29 8 2
99
+3
Es
Einsteinium
[254]
2 8 18 32 29 8 2
68
+3
Er
Erbium
167.259
2 8 18 30 8 2
100
+3
Fm
Fermium
257.095
2 8 18 32 30 8 2
69
+3
Tm
Thulium
168.934
2 8 18 31 8 2
101
+3
Md
Mendelevium
258.1
2 8 18 32 31 8 2
70
+3
Yb
Ytterbium
173.055
2 8 18 32 8 2
102
+2
No
Nobelium
259.101
2 8 18 32 32 8 2
71
+3
Lu
Lutetium
174.967
2 8 18 32 9 2
103
+3
Lr
Lawrencium
[262]
2 8 18 32 32 8 3