Which one of the following elements is unable to form $MF_6^{3-}$ ion?
B
Al
Ga
In
Explanation:
∵ B has no vacant d-orbitals in its valence shell, so it cant extend its covalency beyond 4. i.e. B cannot form the ion like $MF_6^{(3-)}$ i.e. $BF_6^{(3-)}$. Hence, the correct option is (1).
∵ B has no vacant d-orbitals in its valence shell, so it cant extend its covalency beyond 4. i.e. B cannot form the ion like $MF_6^{(3-)}$ i.e. $BF_6^{(3-)}$. Hence, the correct option is (1).
