The correct answer is complete.
<span>Valence
is the number of electrons an atom must gain or lose in order to complete
its outer energy level or have a stable octet in its outer shell.
In the first energy level it can have only 2, but later levels can have 8, that is, an octet.</span>
Is the left one and it’s function is moving
Answer:
if the material is a conductor then it is able to effectively transfer thermal energy
Answer:
earth revolution around the sun