Chlorine is in row 7 of the periodic table and it has 7 valence electrons.
Ions are electrically charged particles formed when atoms lose or gain electrons. An atom with a neutral charge is one where the number of electrons is equal to the atomic number.
The difference between energy and the gaining of electrons is they both have to do with electricity
Chlorine can also bond with Aluminum like many other elements.
The element has to be either a liquid or an ionic compound. The properties of ionic compounds are a mixture between positive and negative charged ions.
A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. covalent bonds form when electrons are shared between two nonmetals and when an ionic bond is a bond charged by two oppositely charged ions.
Forms of Covalent Bonds are Carbon Dioxide (C02) and water (H2O). When two of the same element get combined, it's called a bond pair and a pair that is not shared is called a lone pair.