1
IA
1A
1
H
2
IIA
2A
Hydrogen
1.008
3
Li
Lithium
6.941
11
Na
Sodium
22.990
19
K
Potassium
39.098
37
Rb
Rubidium
85.468
55
Cs
Cesium
132.905
87
Fr
Francium
223.020
4
Periodic Table of the Elements
Atomic
Number
Beryllium
Mg
Magnesium
24.305
Ca
Calcium
40.078
38
Sr
Strontium
87.62
56
Ba
21
3
IIIB
3B
22
Sc
Scandium
44.956
39
Y
Ti
Titanium
47.867
Yttrium
Zirconium
88.906
91.224
57-71
72
Hafnium
178.49
104
Radium
Rutherfordium
226.025
Lanthanide
Series
[261]
57
La
138.905
Actinide
Series
89
Ac
Actinium
227.028
92.906
74
75
W
Cerium
90
Th
Thorium
232.038
98.907
Re
Tungsten
Rhenium
183.84
186.207
106
Dubnium
140.116
Tc
[262]
Sg
107
Seaborgium
[266]
Pr
Bh
91
Pa
Protactinium
231.036
Alkaline
Earth
55.845
Ru
Ruthenium
101.07
76
Os
144.242
U
Uranium
238.029
Transition
Metal
Rh
Rhodium
102.906
77
Osmium
108
Hs
[269]
Ir
144.913
93
Np
Neptunium
237.048
Basic
Metal
Pd
Ag
Palladium
109
110
Mt
Au
69.723
49
Cd
Cadmium
80
Mercury
196.967
Rg
Cn
[278]
Samarium
150.36
94
Pu
Plutonium
244.064
[281]
63
Eu
Europium
151.964
95
[280]
64
Gd
Gadolinium
157.25
96
Am Cm
Americium
243.061
Semimetal
Curium
247.070
Nonmetal
[285]
65
Tb
Terbium
158.925
97
Bk
Berkelium
247.070
Halogen
82
83
Pb
Lead
114
Fl
Nihonium
Flerovium
67
68
Dysprosium
162.500
Cf
Californium
251.080
Noble
Gas
[289]
Ho
Holmium
99
Es
Lanthanide
[208.982]
Moscovium
Livermorium
[289]
Er
100
[254]
Polonium
116
167.259
Einsteinium
Po
115
Erbium
164.930
84
Mc
Fm
Fermium
257.095
[293]
Tm
Thulium
168.934
101
Md
Mendelevium
258.1
Argon
39.948
36
Kr
Krypton
79.904
83.798
54
I
Xe
Iodine
Xenon
126.904
131.294
85
86
At
Rn
Astatine
Radon
209.987
222.018
117
Lv
69
Ar
Bromine
127.6
208.980
18
Br
Tellurium
Bi
20.180
35
53
Te
Bismuth
207.2
[286]
52
121.760
Neon
35.453
78.972
Antimony
Ne
Chlorine
32.066
74.922
F
Cl
Selenium
Sb
Tin
S
Sulfur
Arsenic
10
17
Se
51
118.711
Nh
Dy
98
Germanium
Sn
Tl
66
As
4.003
18.998
34
33
Ge
Indium
P
He
Helium
Fluorine
15.999
30.974
50
In
Oxygen
16
17
VIIA
7A
9
O
Phosphorus
72.631
113
Meitnerium Darmstadtium Roentgenium Copernicium
Si
32
204.383
112
15
28.086
Thallium
200.592
N
14.007
Silicon
114.818
81
Hg
Gold
111
Ds
Gallium
112.411
79
195.085
Ga
48
107.868
Platinum
31
Zinc
Silver
106.42
Al
26.982
65.38
47
14
16
VIA
6A
8
Nitrogen
12.011
Aluminum
Zn
63.546
46
12
IIB
2B
30
Copper
Pt
192.217
Pm Sm
Promethium
Nickel
78
Iridium
190.23
Cu
58.693
45
11
IB
1B
29
Ni
58.933
62
Nd
28
Cobalt
61
60
92
Iron
13
10
Co
Hassium
Praseodymium Neodymium
140.908
Fe
Bohrium
[264]
9
VIII
8
27
44
Technetium
180.948
59
43
Molybdenum
Tantalum
26
54.938
95.95
Ta
Ce
Alkali
Metal
51.996
Mo
Niobium
8
Manganese
42
Nb
7
VIIB
7B
Mn
Chromium
50.942
Db
25
Cr
Vanadium
58
Lanthanum
V
105
Rf
6
VIB
6B
24
73
Hf
89-103
5
VB
5B
41
Zr
137.328
Ra
23
40
Barium
88
4
IVB
4B
Carbon
10.811
15
VA
5A
7
C
Boron
Atomic Mass
12
14
IVA
4A
6
B
Name
9.012
20
13
IIIA
3A
5
Symbol
Be
2
18
VIIIA
8A
118
Ts
Tennessine
70
Yb
Ytterbium
173.055
102
No
Nobelium
259.101
[294]
Og
Oganesson
[294]
71
Lu
Lutetium
174.967
103
Lr
Lawrencium
[262]
Actinide
© 2018 Todd Helmenstine
sciencenotes.org