What does it mean if an element has 8 valence electrons

The answer to your question is the letter A

Explanation:

Valence electrons are the electrons in the outermost shell.

Atoms are located in the periodic table according to the number of electrons in their outermost shell. For example, elements in group Al have 1 electron, elements in group IIIA have 3 electrons, then elements in group VlllA have 8 electrons.

c.is a substance that requires a small amount of energy per gram to raise its temperature; has strong cohesive forces between molecules.

explanation:

a colorless, transparent, odorless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.