Sodium (Na)
Calcium. The first two are beryllium and magnesium.
vagina
The alkali metal in period 2 is lithium (Li).
Potassium (K) is the alkali metal located in the fourth period of the periodic table.
Rubidium is an alkali metal (group 1, period 5)
Sodium (Na) is the alkali metal in period 3 of the periodic table. It is located in group 1 and is known for its high reactivity with water and air. Sodium is commonly found in salts, such as sodium chloride (table salt).
alkali metal
potassium
Alkali Metals, or group IA (One A in roman numerals) and period 3 (3rd level electron shell).
alkali metal
it is about the metal cs. it is inn the 6th period.
Potassium is the alkali in period four of the periodic table. Its symbol is K.