Question

what is the energy required to remove an electron from an atom in the gaseous state called?
shielding energy
nuclear energy
ionization energy
electronegative energy

Explanation:

Ionization energy is defined as the energy required to remove an electron from an atom in the gaseous state. Shielding energy refers to the reduction in the effective nuclear charge experienced by an electron due to the presence of other electrons. Nuclear energy is related to the energy stored in the nucleus of an atom. Electronegative energy is not a standard term in chemistry. The question specifically asks for the energy to remove an electron from a gaseous - state atom, which is ionization energy.

Answer:

C. Ionization energy