Question

multiple - choice question
the amount of energy required to remove a valence electron from an atom is called ____________.
atomic radius
electronegativity
ionization energy

Explanation:

Atomic radius is the distance from the nucleus to the out - most electron shell. Electronegativity is an atom's ability to attract electrons in a chemical bond. Ionization energy is the energy required to remove a valence electron from an atom.

Answer:

C. Ionization energy