The energy change accompanying the addition of an electron to a gaseous atom is called _____________
A. First ionization energy B. Second ionization energy C. Electron affinity D. Electron activity.
Correct Answer: C
Explanation
The first ionization energy is the energy required to remove one electron from each atom is a mole of gaseous atoms, producing one mole of gaseous ion with a position charge while electron affinity is the ability of an atom in gaseous form to attract electron toward itself
