Which of the following species does NOT exist under normal conditions because the central atom canno — Chemical Bonding Chemistry Question

💡 Solution & Explanation

Sulfur possesses 6 valence electrons and vacant 3d orbitals, allowing it to form 6 bonds with highly electronegative atoms like Fluorine ($SF_6$). However, Hydrogen is not electronegative enough to cause the excitation and d-orbital contraction required to form 6 bonds, rendering $SH_6$ non-existent.