Look at the diagram below. +
Will this atom gain or lose electrons to achieve a stable configuration?
It will gain electrons to fill its outer shell.
It will lose electrons to be left with a full outer shell.
It depends on the situation.
It will neither lose nor gain electrons.
ASAP

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium