Question

Which element of group $13$ shows anomalous behavior?

Answer 1

Anomalous behavior of element in group $13$:

• $\mathrm{B}$ (Boron) exhibits unusual behavior in comparison to its other group members.
• It is due to its extremely size and higher nuclear charge/size ratio, strong electronegativity, and lack of d- electron availability.
• The non-metal element is Boron.

Boron

• Boron occurs in two states such as crystalline state and amorphous state.
• Boron's melting and boiling points, such as other nonmetals, are substantially higher than those of the other elements in group $13$.
• Other group 13 elements create some ionic compounds, while Boron exclusively forms covalent compounds.