IONIC BONDING

=Ionic Bonding= Atoms will try to gain or lose electrons in order to get a full valence (outer) shell. This is because an atom with a full valence shell is more '''stable'''. [image:http://i.imgur.com/pElXEKv.png] === ===Atoms in the same group have similar properties because they have the same number of valence electrons. Elements in group 1 and 17 are highly reactive because they almost have a full outer (valence) shell. They only need to lose / gain one electron. Atoms in group 18 are very stable / uncreative because they all have a full valence shell. ===Atoms will try to gain or lose electrons by reacting with other atoms in order to gain a full valence shell.=== [image:http://i.imgur.com/XoVDcmH.png?1] ===The resulting ions are charged because they have an unequal number of protons and electrons.=== *atoms that lose electrons from positive ions called ''CATIONS'' *atoms that gain electrons form negative ions called ''ANIONS'' [image:http://i.imgur.com/GWncZAe.png] The resulting ions will be attracted to each other because they are oppositely charged. This force of attraction is known as an '''ionic bond'''