Chemistry
Which of the following is correct in an element AZY.
- Number of neutrons = Z-A
- Number of protons = A
- Z = sum of protons & electrons
- A = sum of neutrons & electrons
Atomic Structure
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Answer
A = sum of neutrons & electrons
Reason — Mass number = neutrons + protons
Since, this is a neutral atom, therefore, protons = electrons
Mass number = neutrons + electrons
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