Question

Which is correct increasing order of their tendency of the given elements to form $M^{3-}$ ion?

• A. $Bi>Sb>As>P>N$
• B. $Bi<Sb<As<P<N$
• C. $N<P<Sb<Bi<As$$
• D. $Bi>Sb\sim N\sim P>As$

Answer 1

Answer: (B)

$Bi<Sb<As<P<N$

$Bi<Sb<As<P<N$ This is the nitrogen family.

$N$ have highest electronegativity due to which it is having high tendency of forming $M^{3-}$. As we move down electronegativity decreases thereby introducing new $e^{-}$ is less feasible.