In which of the following orbitals is the fifth valance electron

in a fluorine molecule situated?

Answer: p-orbital

Explanation:

Fluorine has an atomic number of 9, hence an electronic configuration of 1s2, 2s2 2p5.

Since, valence electrons refers to the electrons in the outermost shell; counting from the starting orbital and energy level where the 7 valence electrons of fluorine occupy, the fifth valence electron is in the p-orbital of the second energy level (2p5)

Thus, the fifth valence electron of fluorine occupy the p-orbital