Predicting Ionization Energies

PREDICTING IONIZATION ENERGIES Name ___________________________________ The following table has ionization energies for the third row of the periodic table. The energies listed are in units of k]/mol and represent the amounts of energy necessary to remove the first electron (I1), the second electron (I2), and so on for each atom. Some of the entries are left blank. Estimate what approximate value should be entered into each of the lettered boxes. -Take into account the trends in the periodic table. But be careful! Take into account the nature of the electron that must be removed; what energy level and what orbital each electron occupies. Na Mg Al Si P S Cl Ar I1 492 753 a 781 1013 b 1254 1524 I2 4562 1447 1813 c 1900 2257 2296 2662 I3 d e f 3231 g 3376 3848 3945 I4 9539 10542 11574 4350 4958 4562 5160 5768 I5 13349 13619 14853 16107 6269 6993 6539 7234 I6 16599 17988 18326 19772 h 8488 9327 8806 Explain your reasons for the values you predicted for each box.