Chemistry

Question Analysis
This question involves linking ionization energy to the classification of elements as metals or nonmetals. The main focus is on understanding the chemical behavior associated with low ionization energy.

Key Concept Explanation
Metals tend to lose valence electrons easily to form positive ions, which is reflected in their low first ionization energies. Nonmetals, by contrast, tend to gain electrons (or share them) and have high first ionization energies, as they resist losing electrons.

Step-by-Step Solution
1. Recall the chemical behavior of metals (lose electrons) and nonmetals (gain electrons).
2. Link electron loss to low ionization energy (easily removed electrons)...