Which one of the following elements is unable to form MF3-6 ion ?

Question

Which one of the following elements is unable to form MF3-6 ion ? (A) In (B) Ga (C) B (D) Al

Tardigrade Admin · Accepted Answer

∵ 'B' has no vacant d-orbitals in its valence shell, so it can't extend its covalency beyond 4 . i.e. ' B ' cannot form the ion like MF 6 3(-) i.e. BF 63(-)

Q. Which one of the following elements is unable to form $M F_{6}^{3 -}$ ion ?

In

Ga

B

Al

$∵^{'} B^{'}$ has no vacant d-orbitals in its valence shell, so it can't extend its covalency beyond $4$ . i.e. ' $B$ ' cannot form the ion like $M F_{6}^{3 (-)}$ i.e. $B F_{6}^{3 (-)}$

Q. Which one of the following elements is unable to form MF63−​ ion ?

In

Ga

B

Al

∵′B′ has no vacant d-orbitals in its valence shell, so it can't extend its covalency beyond 4 . i.e. ' B ' cannot form the ion like MF6​3(−) i.e. BF63(−)​

Q. Which one of the following elements is unable to form $M F_{6}^{3 -}$ ion ?

$∵^{'} B^{'}$ has no vacant d-orbitals in its valence shell, so it can't extend its covalency beyond $4$ . i.e. ' $B$ ' cannot form the ion like $M F_{6}^{3 (-)}$ i.e. $B F_{6}^{3 (-)}$