![]() The most important thing with ionic bonding equations, are curly arrows, electrons and square brackets! Here is an example of ionic bonding happening between a group 1 and a group 7 atom.Ī hydrogen atom is giving an electron to a fluorine atom. These are called dot and cross diagrams since dots and crosses are used to represent the electrons in different atoms (so that it can be easily seen where the electrons came from). Ionic bonding is represented using dot and cross diagrams. Since one atom needs to lose 1 electron and the other needs to gain 1 electron (this is NOT the only time ionic bonding happens). For example, group 1 atoms easily form ionic bonds with group 7 atoms. You can often tell which atoms usually form bonds with certain atoms, depending on how many electrons are in the outer shell. How to use curly arrows to show the movement of electrons. How to draw a dot cross diagram for ionically bonded substances.
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