II A group elements are called as

In the periodic table

i) IA group elements (Li, Na, K, Rb, Cs) are known as alkali metals

ii)IIA group elements (Be, Mg, Ca, Sr, Ba, Ra) are known as “Alkaline earth metals”.

iii) IIIA group elements (B, Al, Ga, In, Tl) are known as Boron family

iv) VIIA group elements (F, Cl, Br, I, At) are known as Halogens.