Which electrons in this diagram contribute to the stability of the
ion?
a. One electron in the sigma 1s MO and another one in the sigma* 1s
MO.
b. The two electrons in the sigma 1s MO.
c. All electrons.
d. The electron in the sigma* 1s MO.
Energy-level diagram for theHe2+ ion:
ion?
a. One electron in the sigma 1s MO and another one in the sigma* 1s
MO.
b. The two electrons in the sigma 1s MO.
c. All electrons.
d. The electron in the sigma* 1s MO.
Energy-level diagram for theHe2+ ion:
Answer
The molecular orbital diagram for He2 is shown below: o"Is Encrgy 1s2 1s ơ1s As the energy of bonding Is orbital is less than energy of antibonding Is orbital, the ion is stable due to electrons in bonding is orbital (σ| s).
