Question

An atom's atomic number is 7. Its valence is most likely ... An atom's atomic number is 7. Its valence is most likely ... 7 5 3 2 1 previous answersrequest answer

Answer 1

The valence of an atom is defined as the number of bonds formed by the atom in the molecule.

The given atomic number is 7.

The electronic configuration of atom having atomic number 7 is:

$1s^{2}2s^{2}2p^{3}$

From the electronic configuration, it is clear that number of electrons in the outer most orbital (valence shell electron) is 5.

Hence, for an atom whose atomic number is 7. Its valence is 5.