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The electronic configuration of metal M ...

The electronic configuration of metal M is `1s^2 2s^2 2p^6 3s^(1)`. The formula of its oxide will be

A

MO

B

`M_2O`

C

`M_2O_3`

D

`MO_2`

Text Solution

Verified by Experts

The correct Answer is:
B
`underset((1s^2" "2s^2" "2p^6" "3s^(1)))(2M) rarr underset((1s^2" "2s^2" "2p^6))(2M^(+))+2e^(-)`
`underset((1s^2" "2s^2" "2p^4))(O)+2e^(-) rarr underset((1s^2" "2s^2" "2p^6))(O^(2-))`
Thus, `M_2O`.
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