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An element M has an atomic mass 19 and a...

An element `M` has an atomic mass 19 and atomic number 9. Its ion is represented by

A

`M^(+)`

B

`M^(-)`

C

`M^(2+)`

D

`M^(2-)`

Text Solution

Verified by Experts

The correct Answer is:
B
`M^(-)`, After gaining an `e^(-)` the element attains stable configuration.
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