formation of ions

• Proton has a positive charge
• Electron has a negative charge
• Neutrons have no charge
• Atoms are neutral because they contain equal numbers of protons and electrons.
• A large atom is called an ion
• Ions are atoms that carry a positive or negative charge, it is a result of gaining or loosing electrons
• Cations are positive charged ions because they have more protons than electrons
• Anions have a negative charge because they have more electrons than protons.
• Electron negativity is the ability of an atom to attract electrons
• Atoms need to lose or gain electrons in order to be stable.
• They become stable when their outermost shell or valence shell contains eight electrons, which satisfies the Octet Rule.