ElisaAlvarez1219 ElisaAlvarez1219 12-01-2021 Chemistry contestada 1st: 620 kJ/mol 2nd : 1048 kJ/mol 3rd : 9144 kJ/mol 4th : 18724 kJ/mol 5th : 24141 kJ/mol 6th : 30724 kJ/mol 7th : 38761 kJ/mol 8th : 47867 kJ/mol 9th : 59877 kJ/mol Use the successive ionization energies for this unknown element to identify the family it belongs to.