Chemistry, asked by ishan3626, 7 months ago

Please solve this question is from chemistry.

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Answered by anupampradhan876

0

Answer:

I know only mass no and atomic no because I am of class 9

Explanation:

atomic no. mass no

beryllium. 4. 9

nitrogen. 7. 14

Sodium. 11. 23

aluminum. 13. 27

calcium. 20. 40

thanks for questioning

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