Question

what are valence electrons?
. electrons found in the outermost energy level.
. maximum number of valence electrons is eight (8).
identify the element and number of valence electrons in each atom below:
element name:? valence electrons:?
element name:? valence electrons:?

Explanation:

Step1: Recall valence - electron concept

Valence electrons are in the outermost energy level.

Step2: Analyze first atom diagram

Count the out - most electrons. There are 4 outermost electrons. This atom is carbon (C) as it has 6 total electrons with 2 in the first shell and 4 in the second (outer) shell.

Step3: Analyze second atom diagram

Count the out - most electrons. There are 6 outermost electrons. This atom is oxygen (O) as it has 8 total electrons with 2 in the first shell and 6 in the second (outer) shell.

Answer:

First atom: Element Name: Carbon, Valence Electrons: 4
Second atom: Element Name: Oxygen, Valence Electrons: 6