Home Chemistry Structure of Atom Atomic Number, Mass Number, Atomic Species The nucleus of an element contain 9 protons.…
Chemistry Structure of Atom Atomic Number, Mass Number, Atomic Species Single Correct MCQ
Published on: August 13, 2026

The nucleus of an element contain 9 protons. Its valency would be

A
1
B
3
C
2
D
5

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Text Solution

Verified by Experts
The correct answer is:
A

Since its nucleus contain 9 proton so its. atomic number is 9 and its electronic configuration is 2, 7. So it require one more electron to complete its octet. Hence its valency is 1.

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