Br (Bromine) is a period 4 element in the same group as F.
The element in the same group as lithium (Group 1) and the same period as iron (Period 4) is potassium.
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
calcium
The element is krypton (Kr)
element K, or potassium
The element in period 4, group 7 of the periodic table is Manganese (Mn).
The element in Period 4 and Group 2 is Calcium, which has the chemical symbol Ca.
Krypton.
It is iron.
Element Name: Arsenic. Chemical Symbol: As.