Chromium
On the periodic table group 4A is carbon, silicon, germanium, tin and lead. (aka "The Carbon Group")
The element in period 4 group 2A is calcium (Ca).
The element in group 4 period 5 is Zirconium (Zr).
Germanium belongs to group IVA or group 14 and period 4
The element is krypton (Kr)
Chromium
On the periodic table group 4A is carbon, silicon, germanium, tin and lead. (aka "The Carbon Group")
Gallium (Ga)
In the periodic table, the Group 2, Period 4 element is calcium. Calcium is classified as a silvery-gray metal. Calcium is the most abundant of the metallic elements in the human body.
The element in period 4 group 2A is calcium (Ca).
The representative element in period 4 group 14 is silicon (Si). It is located in Group 14 of the periodic table, also known as the carbon group. Silicon is a metalloid that exhibits properties of both metals and nonmetals.
Br (Bromine) is a period 4 element in the same group as F.
The element in group 4 period 5 is Zirconium (Zr).
Germanium belongs to group IVA or group 14 and period 4
Selenium is located in Group 16, Period 4 of the periodic table. It is a nonmetal element with the symbol Se and atomic number 34.
calcium
The element is krypton (Kr)