A one electron species, X m , where m is the charge of the one electron species and X is the element symbol, loses its one electron from its ground...

A one electron species, Xm, where m is the charge of the one electron species and X is the element symbol, loses its one electron from its ground state when it absorbs 7.84 x 10-17 J of energy. Using the prior information, the charge of the one electron species is