Question

Why alcl3 is halogen cassier

Answer 1

Explanation:

because in AlCl3, Aluminium is electron deficient due to presence of only 6 electrons in valance shell of Al (3 of Al and 3 of Cl). That means its octed is not complete and it requires 1 pair electrons. Therefore AlCl3 forms coordinate bond with halide ion Cl- resulting AlCl4-.

Answer 2

Answer:

In AlCl3, Aluminium is electron deficient due to presence of only 6 electrons in valance shell of Al (3 of Al and 3 of Cl). That means its octed is not complete and it requires 1 pair electrons. Therefore AlCl3 forms coordinate bond with halide ion Cl- resulting AlCl4-.