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the nucleus of an element contain 9 pr...

the nucleus of an element contain 9 protons
its valency would be

A

`-1`

B

3

C

2

D

5

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 octer . Hence its valency is -1
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