Question

identify the correct elements being described below: the only group 1 element that is not an alkali metal. the lightest alkali metal. part of the halogens group.

Explanation:

Hydrogen is in Group 1 but not an alkali metal. Among alkali - metals, lithium is the lightest. Chlorine is part of the halogens group.

Answer:

1. H. Hydrogen
2. Li. Lithium
3. Cl. Chlorine