Physics, asked by Babygurl, 1 year ago

How many neutrons are present in an atom of Sodium-20?
A. 12
B. 11
C. 10
D. 9

Answers

Answered by Mather

0

so no. of protons should be 11 and we know atomic mass = protons +neutrons
20=11+neutrons
neutrons =9 ans.

Answered by thakuraditya123

0

I wish this answer will help you

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