The lowest energy state of a quantized system is

A state in which an atom has more energy than it does at its ground state.

Hopes this helps!

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.