In addition to alkaline earth metals (IIA group), some other groups of the table D.I. Mendeleev have their own names.

Alkali metals (IA group), halogens (VIIA group), noble or inert gases (VIIIA group).

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.