In the Outermost Energy Level?

The outermost energy level that (in the ground state of the atom) contains electrons is called the "valence shell" of the atom. These valence electrons are responsible for all chemical bonds between atoms.

Is the outermost energy level the highest?

The Outermost Level

An atom is most stable if its outermost energy level contains as many electrons as it can hold. For example, helium has two electrons, both in the first energy level. This energy level can hold only two electrons, so helium's only energy level is full. This makes helium a very stable element.

How do you find the outermost energy level?

The number of protons in the nucleus increases when reading the periodic table from right to left. Each row represents an energy level. The elements in each column share similar properties and the same number of valence electrons. Valence electrons are the number of electrons in the outermost energy level.