Question

comparing alkali metals with alkaline earth metals
match the property with the correct type or metal.
soft
extremely reactive
1 valence electron
2 valence electrons
harder, more dense
alkali metals
alkaline earth meta

Explanation:

Alkali metals are soft, extremely reactive, and have 1 valence electron. Alkaline - earth metals have 2 valence electrons and are harder and more dense.

Answer:

Soft - Alkali Metals
Extremely reactive - Alkali Metals
1 valence electron - Alkali Metals
2 valence electrons - Alkaline Earth Metals
Harder, more dense - Alkaline Earth Metals