Which family on the periodic table contains elements that already have the octet in their valence energy level? a: family 1 b: family 13 c: family 15 d: family 18?

How do the energy differences between the higher energy levels of an atom compare with the energy difference between the lower energy level of the atom

An occluded front moves over the farmland that has been experiencing drought conditions. what change in weather will this front likely bring? a. gray skies, but no rain b. an extended period of rain c. more dry air and sunny skies d. violent, short-lived thunderstorms

Newtons second law deals most cosely with