Ionic bonding

http://www.youtube.com/watch?v=xTx_DWboEVs&feature=related

This can be a short introductory to ionic bonding. Okay the electron configuration drawing are shit so don't copy it.
Ionic bonding is the transfer of electrons from an element to another element. Ions are formed when an atom loses or gain electron(s).
A positive ion(cation) is formed when an atom loses it's outer shell electrons to have a fully filled outermost shell.
A negative ion(anion) is formed when an atom gain electrons to have a fully filled outermost shell.
Formation of ionic bonds
One example of ionic bonding can be .... sodium chlroride. A sodium atom would lose one of it's valence electrons to form anion because it has only 1 electrons in it's outermost shell. A chlorine atom would then receive the electron to have a fully filled outermost shell. In this way both of the atoms have fully filled outermost shell which means they are stable but under one condition that is they have to bond together. Initially by itself a sodium atom is Na+ and chlorine would be Cl- . Final result would be NaCl. The forces between them is very strong. This force that is between them are called electrostatic force.
if you want more examples ask me personally. I can't draw out in blogs sorry yeah.
Formation of covalent bonds
Covalent bonding means the sharing of electrons like mrs ow had said. There are single bond. Double bond. Triple bond.
Single bond is the sharing of a pair of electrons
Double bond is the sharing of 2 pairs of electrons
Triple bond is the sharing of 3 pairs of electrons
Covalent bond can only be formed in non-metals group.
For instance, a hydrogen atom has 1 outer electrons and it wants to have a fully filled outermost shell. So, it will share with another hydrogen atom to have a fully filled outermost shell. In this case they share a pair of electrons. So you roughly get the idea of double and triple bond. I couldn't draw it out sorry yeah. Ask me personally if you wanna learn more.