RE-NEET 2026 Chemistry Element Properties MCQ Question

The correct statement is that Boron has a maximum covalency of four. This is because Boron, with an atomic number of 5, has three valence electrons and can form four bonds by utilizing its empty p-orbital to accommodate additional electrons.

Option A is incorrect as Beryllium has only two valence orbitals. Option B is wrong because Magnesium typically exhibits a maximum covalency of two, not four. Option C fails since Aluminium has three valence orbitals, not five. Thus, only option D accurately describes Boron's bonding capacity.