The maximum covalency of the first element in any p-block group (such as Boron in Group 13 or Nitrog — p Block Elements Chemistry Question

💡 Solution & Explanation

Elements of the second period (like B, C, N) possess only s and p orbitals in their valence shell ($n=2$). Because they lack d-orbitals, they cannot expand their octet, effectively restricting their maximum covalency to exactly 4.