Two elements X and Y have the following ...

Two elements X and Y have the following configuration
`X=1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)4s^(2)`
`Y=1s^(2)2s^(2)2p^(6)3s^(2)3p^(5)`
The compound formed by the combination of X and Y will be

A

`XY_(2) `

B

`X_(5)Y_(5)`

C

`X_(2)Y_(5)`

D

`Y_(2)Y_(5)`

Verified by Experts

The correct Answer is:

A

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