Question

which elements are alkali metals? check all that apply. scandium potassium lithium cobalt iron

Explanation:

Alkali metals are in Group 1 of the periodic table. Potassium (K) and lithium (Li) are in Group 1. Scandium (Sc) is in Group 3, cobalt (Co) is in Group 9, and iron (Fe) is in Group 8.

Answer:

potassium, lithium