PTOV

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ELEMENT:
Helium
SYMBOL:
He
ATOMIC NUMBER:
2

   
       

Recommended Elements
9 Fluorine F
8 Oxygen O
11 Sodium Na
30 Zinc Zn
19 Potassium K
103 Lawrencium Lr
92 Uranium U
117 Ununseptium Uus
55 Caesium Cs
21 Scandium Sc