explain ionic bonding in a giant ionic lattice?

Bonding is about the movement of electrons-electrons are NEGATIVELY charged-the electrons move to allow atoms to become more STABLE by having a full outer shell of electrons-The periodic table is useful to look at when thinking about outer shells and this can help think about how the electrons will move-Sodium Chloride (table salt) is a great example of this-Sodium is group 1 , it has 1 electron in its outer shell-To become more stable it needs to lose one electron-Metals and hydrogen usually form POSITIVE ions. -This means they have lost one electron or more-Halogens such as chloride have 7 electrons in the outer shell-They need 1 electron.-Metals, sodium in this case, DONATES an electron. It therefore becomes positively charged as it has lost an electron. it is a sodium (1plus) ion. Halogens, chlorine in this case, ACCEPTS an electron and becomes negatively charged. it has ONE extra electron so it has a ONE minus charge. Once electrons are lost/gained, the atoms have a charge so are known as IONS.Because of oppositely charged ions, there are STRONG ELECTROSTATIC forces of attraction between them.