What are alkali metals?

Answer by  mandriloquai (324)

Alkali metals are chemical elements forming group 1 and period 1 of the periodic table. They are grouped like these because they present similar chemical properties (highly reactive, low density, and low melting point, among others): Lithium(Li) Sodium(Na) Potassium(K) Rubidium(Rb) Caesium(Cs) Francium(Fr). They react violently with the opposing Halogen elements.

Answer by  njeri (142)

Alkali metals are a group of elements that are placed in group 1 in the periodic table. They are the most reactive of metals. Examples are sodium, lithium, potassium,rubidium, caesium and francium.