7. The small, but important, energy differences between 3s, 3p, and 3d orbitals are due mainly to (A) the number of electrons they can hold (B) their principal quantum number (C) the Heisenberg uncertainty principle (D) the penetration effect (E) Hund's rule

15. Which of the following statements relating to molecular orbital (MO) theory is incorrect? (A) Combination of two atomic orbitals produces one bonding and one antibonding MO. (B) A bonding MO is lower in energy than the two atomic orbitals from which it is formed. (C) Combination of two 2p orbitals may result in either σ or π MOs. (D) A species with a bond order of zero will not be stable. (E) In a stable molecule having an even number of electrons, all electrons must be paired.

7. The small, but important, energy differences between 3s, 3p, and 3d orbitals are due mainly to
(A) the number of electrons they can hold
(B) their principal quantum number
(C) the Heisenberg uncertainty principle
(D) the penetration effect
(E) Hund's rule

相關試題

相關試卷

7. The small, but important, energy differences between 3s, 3p, and 3d orbitals are due mainly to(A) the number of electrons they can hold(B) their principal quantum number(C) the Heisenberg uncertainty principle(D) the penetration effect(E) Hund's rule

相關試題

相關試卷

7. The small, but important, energy differences between 3s, 3p, and 3d orbitals are due mainly to
(A) the number of electrons they can hold
(B) their principal quantum number
(C) the Heisenberg uncertainty principle
(D) the penetration effect
(E) Hund's rule