Question

The second ionization potential of an element M is the energy required to

• A. Remove one mole of electron from one mole of gaseous anion
• B. Remove one mole of electron from one mole of gaseous cation of the element
• C. Remove one mole of electron from one mole of monovalent gaseous cation of the element
• D. Remove 2 moles of electrons from one mole of gaseous atoms

Answer 1

The correct option is C

Remove one mole of electron from one mole of monovalent gaseous cation of the element

The first ionization energy is the energy required to remove 1st electron from the outermost shell of an isolated gaseous atom.

Second ionization energy is defined as the energy required to remove 2nd electron from the outermost shell of an isolated gaseous atom.