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Hydrogen
0
Helium
2
Lithium
4
Beryllium
5
Boron
6
Carbon
6
Nitrogen
7
Oxygen
8
Fluorine
10
Neon
10
Sodium
12
Magnesium
12
Aluminum
14
Silicon
14
Phosphorus
16
Sulfur
16
Chlorine
18
Argon
22
Potassium
20
Calcium
20
Gallium
39
Germanium
41
Arsenic
42
Selenium
45
Bromine
45
Krypton
48
Rubidium
48
Strontium
50
Indium
66
Tin
69
Antimony
71
Tellurium
76
Iodine
74
Xenon
77
Cesium
78
Barium
81
Thallium
123
Lead
125
Bismuth
126
Polonium
125
Astatine
125
Radon
136
Francium
136
Radium
138
Nihonium
173
Flerovium
175
Moscovium
174
Livermorium
176
Tennessine
177
Oganesson
176