Question

top 20 elements of aomic number​

Answer 1

Answer:

H,HE,LI,Be,B,C,N,O,F,Ne,Na,Mg,Al,Si,P,S,Cl,At,K,Ca

Answer 2

Hydrogen
Helium
Lithium
Beryllium
Boron
Carbon
Nitrogen
Oxygen
Fluorine
Neon
Sodium
Magnesium
Aluminium
Silicon
Phosphorus
Sulphur
Chlorine
Argon
Potassium
Calcium

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