What effect do valence electrons have on the reactivity of elements?
Two elements can react with each other when the electrons in their outermost shells have become positively
Elements become able to react with other elements when their innermost shell has acquired two electrons.
The way elements react with each other is determined by the number of electrons in their outermost shells.
Any element can react with other elements if it has a complete set of electrons in its outermost shell.
