A student investigates how two isolated hydrogen atoms form a stable diatomic hydrogen molecule as they approach each other from an infinite separation. The student observes that an optimal internuclear distance is reached where the potential energy of the system drops to a minimum. Which fundamental interaction primarily accounts for the stability of the resulting covalent bond at this equilibrium distance?

A) Complete transfer of valence electrons from one atom to another creates oppositely charged ions that attract each other.

B) Direct electrostatic attraction between the two positively charged nuclei binds the atoms together without electron involvement.

C) Repulsive forces between the negatively charged electron clouds dominate, locking the atomic centers in fixed spatial orientations.

D) Simultaneous electrostatic attractions between the shared electron pair and both positively charged nuclei balance the repulsions.

Covalent bonds Transitional Reasoning Download PDF

Chemistry · Chemical Bonding & Molecular Structure · Chemistry · Covalent Bonding

1 Chemistry practice questions on Covalent bonds. Questions that build towards applied reasoning.