Question

Assertion: the number of valence electrons in oxygen atoms is 6 .

Reason : the valency of oxygen atom is 6​

Answer 1

Answer:

nation: An atom of oxygen has 8 electrons. Out of that 2 are in the first shell. Therefore, 6 electrons are in the valence shell.

Answer 2

ANSWER

• An atom of oxygen has 8 electrons. Out of that 2 are in the first shell. Therefore, 6 electrons are in the valence shell.

• Valence electrons are the electrons in the outermost shell, or energy level, of an atom. For example, oxygen has six valence electrons, two in the 2s subshell and four in the 2p subshell.

• Oxygen, like all the other elements in group 16, has six valence electrons.