Describe how ionic and covalent bonding forms compounds (6). You may use diagrams to help.

Compounds are structures where two or more elements are chemically bonded together. These chemical bonds are ionic, covalent or metallic depending on the elements involved. Ionic bonds, form between a metal and a non metal due to the numbers of electrons in their out shells. E.g. group 1 and group 7 (adds to 8 - a full outer shell). The group 7 element steals an electron from the group 1 element to form a negatively charged ion (gained a negatively charged electron) and the group 1 element loses a negatively charged electron to form a positive ion with a full outer shell. These oppositely charged ions bond through strong electrostatic forces to form the compound. (NaF or NaCl etc)Covalent bonds, form between two non metals. Rather than stealing they share to create full outer shells. Hydrogen is a good covalent compound to remember as it stands out on the periodic table (on the top left). The smallest full outer shell is 2 electrons. Hydrogen has an atomic number of 1, so two hydrogen atoms share their electrons to create a full outer shell of two. This sharing is bonds the atoms together to form a covalently bonded compound.