Question

The second ionization energy is always the first ionization energy.

• A. greater than
• B. lesser than
• C. equal to

Answer 1

The correct option is A greater than

The energy required to remove the valence electrons of an isolated gaseous atom is called ionization energy. The second ionization energy is always higher than the first ionisation energy because after removing one electron from the outermost shell of a neutral atom, the nucleus attracts the remaining electrons with a greater nuclear force. Therefore, more energy is required to remove the second electron from the outermost shell.