Science, asked by maninder43, 10 months ago

the chart of first 20 atomic number element

Answers

Answered by ishita7875

0

Explanation:

hydrogen

helium

lithium

beryllium.

boron

carbon

nitrogen

oxygen

fluorine

neon

sodium

magnesium

aluminium silicon

phosphorus

sulphur

chlorine

argon

potassium

calcium

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