When the 1s Orbitals of Two Hydrogen Atoms Combine to Form

question 156

Multiple Choice

When the 1s orbitals of two hydrogen atoms combine to form a hydrogen molecule,how are the electrons distributed in the resulting molecular orbitals?

• A)Two electrons in the bonding molecular orbital.
• B)One electron in the bonding molecular orbital,one electron in the non-bonding molecular orbital.
• C)One electron in the bonding molecular orbital,one electron in the antibonding molecular orbital.
• D)Two electrons in the non-bonding molecular orbital.
• E)Two electrons in the antibonding molecular orbital.

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Definitions:

Embryo Sac

Female gametophyte (megagametophyte) of flowering plants.

Polar Nuclei

Two nuclei in the embryo sac of flowering plants that fuse with a sperm cell to form the endosperm, nourishing the developing embryo.

Microspore Mother Cell

A specialized cell in plants that undergoes meiosis to produce four microspores, eventually giving rise to male gametophytes or pollen grains.

Sporophyte

The diploid multicellular stage in the life cycle of a plant or alga that produces spores through meiosis.