Question

You notice a thief trying to steal your phone from your back pocket. More than likely, you will fight to keep the thief away from you and your phone, but this requires effort. For an atom, the energy required to steal and electron is known as the ionization energy.
Which of the following is not true about ionization energy?

• A. It is the minimum amount of energy required to remove an electron from the gaseous atom.
• B. The energy to remove the electron is required to overcome the proton-electron attraction within the atom.
• C. Ionization energy decreases with the removal of each successive electron.
• D. Ionization energy increases as the distance between the electron and the protons decreases.

Answer 1

Answer: (C)

Ionization energy decreases with the removal of each successive electron.

On removal of each electron generates $+ve$ charge on the molecule and the force per unit electron increases,

so, on successive removal of electron we require more energy to overcome the force of attraction.