Based on the organization and colors in the periodic table, which two elements do you think are most similar in terms of their properties magnesium (Mg) , barium (Ba) , and gold (Au) ? Explain .

Magnesium and barium

Explanation:

They are both Alkaline earth metals. All the alkaline earth metals react with water to produce hydrogen gas and the metal hydroxide, although somewhat less vigorously than the alkali metals.

c- cold periods in earth's history during which glaciers covered much of the surface.

explanation: