Part of the first approach to assigning electrons in HF is shown in the diagram.

Question

Part of the first approach to assigning electrons in HF is shown in the diagram. (The valence electrons have purposely not been included at this point) Which statement about electron site assignments in HF is not true? Choose one answer. a. There is one a bond site and one a bond site between the two atoms. b. The bonding between the two atoms will occur between the Is orbital of hydrogen and the 2s orbital of fluorine. c. The sigma bond site is at a lower energy level than the a bond site. d. The sigma bond site is at an energy level somewhere between the 2p and 2s energy level for fluorine.

Explanation / Answer

The correct answer is B, means the bonding between the two atoms will occur between the 1s orbital of hydrogen and the 2s orbital of fluorine is not true.

The bonding between the two atoms will occur between the 1s orbital of hydrogen and the 2P orbital of fluorine.

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