Biology, asked by anurag2005nov987, 7 months ago

I want atomic mass of first 20 elements

Answers

Answered by ravalika31

1

search on Google

or physical science text book front page

Answered by vishnujadon80

1

Answer:

atomic mass of elements

Explanation:

H-1

He - 4

Li - 7

Be - 8

B - 11

c - 12

N - 14

O - 16

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