An atom that gain or loses an electron has a net eletric charge and is called a/n

When an atom gains or loses an electron it's called an ion. Ions have a net positive or negative electrical charge. If an atom loses electrons, it has a net positive charge . If an atom gains electrons, it has a net negative charge and is known as an anion..

It makes up an community

The basic repeating unit of nucleic acids are known as nucleotides. a nucleotide consists of three distinct chemical groups.