Given below are the pairs of group 13 element showing their relation in terms of atomic radius.
$(\mathrm{B} \lt \mathrm{Al}),(\mathrm{Al} \lt \mathrm{Ga}),(\mathrm{Ga} \lt \mathrm{In}) \text { and }(\mathrm{In} \lt \mathrm{Tl})$
Identify the elements present in the incorrect pair and in that pair find out the element (X) that has higher ionic radius $\left(\mathrm{M}^{3+}\right)$ that the other one. The atomic number of the element $(\mathrm{X})$ is

Question

Aicharya · Accepted Answer

Size order $\begin{aligned} & \mathrm{Al} \gt \mathrm{Ga} \ & \mathrm{Al}^{3+} \lt \mathrm{Ga}^{3+} \end{aligned}$ Atomic number of Ga is 31

Given below are the pairs of group 13 element showing their relation in terms of atomic radius. $(\mathrm{B}…

Solution