Of the elements: B, C, F, Li, and Na, the element with the smallest ionization energy is
A)B.
B)C.
C)F.
D)Li.
E)Na.

Question

Quizplus · Accepted Answer

Na (Sodium) has the smallest ionization energy among the given elements because it is located in the third period and is a member of the alkali metals (group 1), which typically have lower ionization energies due to their larger atomic radii and the increased distance of the valence electron from the nucleus.

Of the Elements: B, C, F, Li, and Na, the Element