What does it mean for an atom's behavior if it missing electrons in the valence shell?

It causes concave waves that ruin the flow of energy. Basically stopping all movements at the center of the atom then to the rest of the body. 

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on