Question

which of the following elements is among the alkali metals?○ magnesium (mg)○ potassium (k)○ lead (pb)○ tin (sn)question 13 (5 points)

Explanation:

Alkali metals are Group 1 elements of the periodic table. Magnesium is a Group 2 alkaline earth metal, Lead and Tin are post-transition metals in Group 14, while Potassium is in Group 1, making it an alkali metal.

Answer:

Potassium (K)