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periodic tale elemen

TermDefinition
H 1 hydrogen
He 2 helium
Li 3 lithiuum
Be 4 beryllium
B 5 boron
C 6 carbon
N 7 nitrogen
O 8
F 9
Ne 10
Na 11
Mg 12
Al 13
Si 14
P 15
S 16
Cl 17
Ar 18
K 19
Ca 20
Sc 21
Sc 22
23
24
25
Popular Physics sets

 



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