Answer Happy

Please select all correct statements regarding ionization energy (there may be more than one answer): The ionization energy of oxygen is smaller than that of nitrogen because oxygen is larger than nitrogen. Removing the 3p electron from argon requires more energy than removing the 2p electron from neon because argon has more positive charges in the nucleus than neon. The ionization energy of oxygen is smaller than that of fluorine because the Zeff for oxygen is smaller than that for fluorine. Removing the 3p electron from sulfur requires less energy than removing the 3p electron from phosphine because a paired electron is removed from sulfur releasing electron-electron repulsion.