The early actinoids are characterized by their ability to involve all valence electrons in bonding d — d and f Block Elements Chemistry Question

💡 Solution & Explanation

Due to the tiny energy gap between the $5f$, $6d$, and $7s$ orbitals, early actinoids can lose or share multiple electrons. Neptunium ($Np$) and Plutonium ($Pu$) utilize all their available valence electrons to reach a strictly verified maximum oxidation state of $+7$.