Question

Pick out the incorrect statement:

• A. The tendency to form ionic compounds increases from B to Tl
• B. Boron forms covalent compounds only
• C. Thallium forms ionic compounds only
• D. Group 13 elements have a lower tendency to form complexes than the s- block elements.

Answer 1

The correct option is D Group 13 elements have a lower tendency to form complexes than the s- block elements.

Group-13 elements have more tendency to form complexes than s-block elements due to their smaller size, more effective nuclear charge as well as the presence of vacant orbitals to accept electrons.