Which metals have similar chemical property's? Check all that apply.

Barium

Beryllium

Rubidium

Radium

Titanium

Calcium

Platinum

Barium, Beryllium, Radium, and Calcium.

Explanation

All four metal elements (Ba, Be, Ra, and Ca) are found in group 2 of a modern periodic table. By periodicity, they have similar chemical properties.

Shared properties likely include:

Softness. With only two valence electrons per atom, the four elements form weak metallic bonds. Their pure forms are thus easy to shape and cut. High reactivity. Group 2 "alkaline-earth" metals are only two electrons away from ideal gas electron configurations. They lose electrons more readily than most transition metals such as iron and copper do. Group 2 metals tarnish easily in the earth atmosphere, and reacts readily with water to produce hydrogen and a base - hence the name "alkaline."

A B D F