Which ion was formed by providing the second ionization energy to remove an electron?
ca2+
n3–
fe3+
s2–

The correct answer is

Explanation:

Ionization energy is defined as the energy required to remove an electron from an isolated gaseous atom. It is represented as

Second ionization energy is defined as the energy required to remove two electrons from an isolated gaseous atom.

When electrons are removed from an atom, it results in the formation of positive ion known as cation.

Thus, the ion having +2 charge will be formed by providing second ionization energy.

Hence, the correct answer is