First slide

13th group or boron group

Question

Which of the following statement is incorrect for the Boron family?

Moderate

A

Ionization potential : $B > T l > G a > A l > I n$
B

Electronegativity : $B > T l > I n > G a > A l$
C

Density order : $B < A l < G a < I n < T l$
D

Atomic size : $B < A l < G a < I n < T l$

Solution

Ga has a lesser size than Al on account of poor shielding effect by the 3d subshell electrons.

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