3. Consider the graph of first ionization energies. On the periodic table template, indicate the general trend in first ionization energy First lonization Energies lonization energy (kJ/mol) 2500 He Ne 2000 1500 1000 500 2 Na Ar 0 0 10 20 Noble gases Kr Period 4 transition Period 5 transition Xe elements Rb Alkali metals elements 30 40 50 Atomic number A