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3 years ago

Help in apex!!!!

Chemistry

1 answer:

GenaCL600 [577]3 years ago

4 0

<h3><u>Answer</u>;</h3>

Halogens
Alkali metals

<h3><u>Explanation</u>;</h3>

Elements in the periodic table are classified into various categories including alkali metals, alkaline-earth metals, halogens, and noble gases among others.
<u>Alkali metals are Group 1 elements in the periodic table.</u> They comprise of elements lithium (Li) through francium (Fr). They have similar characteristics and behavior.
<u>Halogens is another category of elements which is a subset of the nonmetals.</u> 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.

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