The electronic configuration of three elements A,B and C are give… - Vidyadip

Question

The electronic configuration of three elements $A,B$ and $C$ are given below. The molecular formula of the compound formed from $B$ and $C$ will be

$A : 1s^2\, 2s^2\, 2p^6$

$B : 1s^2\, 2s^2\, 2p^6\, 3s^2\, 3p^3$

$C : 1s^2\, 2s^2\, 2p^6\, 3s^2\, 3p^5$

✓

Answer

d
$B$ represents phosphorus $P$ and $C$ represents Chlorine $Cl$. The compound formed is $PCl _3$ i.e., $BC _3$.

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