An ion is formed when an atom gains or loses an electrons or electrons. If it gains an electron, it becomes an anion, and if it loses an electron it becomes a cation.
a bromide ion is formed, the ion formed has a -1 charge, and the ion formed is an anion
fluoride ion
An ions is formed when an atom gains or loses electrons.
The ion Se4+ is common.
caltribadium ion
An ions is formed when an atom gains or loses electrons.
As2-
An ions is formed when an atom gains or loses electrons.
Sulfide ion is formed when the sulfur atom gains two electrons from an external atom.
ion
Eletron
Anion