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Periodic Table

First 20 elements, chemical symbol and atomic number

QuestionAnswer
Hydrogen H, 1
Helium He, 2
Lithium Li, 3
Beryllium Be, 4
Boron B, 5
Carbon C, 6
Nitrogen N, 7
Oxygen O, 8
Fluorine F, 9
Neon Ne, 10
Sodium Na, 11
Magnesium Mg, 12
Aluminum AI, 13
Silicon Si, 14
Phosphorus P, 15
Sulfur S, 16
Chlorine Cl, 17
Argon Ar, 18
Potassium K, 19
Calcium Ca, 20
Created by: gigibird
 

 



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