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Element 'X' having electronic configurat...

Element 'X' having electronic configuration `1 s^(2) 2s^(2) 2p^(6), 3s^(2) 3p^(3)` form compound with Ca. The compound is :

A

`Ca_(2)X_(3)`

B

`Ca_(3)X`

C

`CaX_(2)`

D

`CaX`

Text Solution

Verified by Experts

The correct Answer is:
B
`X =` phosphorous, Electro valency `= -3`
`Ca^(+2)`
`Ca^(+2) X^(-3) rarr Ca_(3) X_(2)`
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