In ionic compounds, lose their valence electrons to form positively charged nonmetals, anions metals, polyatomic ions metals, anions nonmetals, cations metals, cations

            In ionic compounds, Metals lose their valence electrons to form positively charged Cations. 

Explanation:
                   Metals have the ability to loose elctrons readily. For example metals of Group IA and Group IIA readily looses electrons in order to obtain Noble Gas Configuration. On the other hand Non-metals tends to gain electrons and acquire negative charge. While Ions are made when an an element gain or loose electrons. After loosing electrons element get positive charge which is called as Cation while on gaining electron it gets negative charge called as Anion.

In ionic compounds, metals lose their valence electrons to form positively charged cations.

What is an ionic compound?

An ionic compound can be defined as a crystalline, solid substance that is typically made up of neatly packed and oppositely charged ions, which are chemically bonded through electrostatic forces.

The examples of an ionic compound.

In Chemistry, some examples of an ionic compound include the following:

Aluminum chloridePotassium bromideSodium oxideLithium chlorideSodium chloride

The formation of an ionic compound.

Generally, metallic elements lose their valence electrons to a non-metallic element to form positively charged cations, which leads to the formation of an ionic compound.

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Cause its being chemically applied?

So3 that’s what i think