Question

Help in apex!!!!

Answer 1

Answer;

• Halogens
• Alkali metals

Explanation;

• Elements in the periodic table are classified into various categories including alkali metals, alkaline-earth metals, halogens, and noble gases among others.
• Alkali metals are Group 1 elements in the periodic table. They comprise of elements lithium (Li) through francium (Fr). They have similar characteristics and behavior.
• Halogens is another category of elements which is a subset of the nonmetals. They comprise group 17 of the periodic table, from fluorine (F) through Astatine (At). These elements are chemically reactive and reacts with other elements such as group 1 and group 2 element.