1.3 Ionic Bonding
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Why do ions form
When atoms lose or gain electrons when trying to form a full outer shell
Why do atoms want a full outer shell
So they have a stable electronic structure
Anions
Negative ions
Cations
Positive ions
How do you work out the charge on an ion
The group they are in
Ionic bonding
When a metal and non-metal react together, the metal atom loses electrons to form a cation and the non-metal gains these electrons to form an anion
Ionic bond
The strong electrostatic attraction between oppositely charged ions
What is the arrangement of an ionic compound
Regular lattice
Overall charge of an ionic compound
Zero
Why are the bonds in an ionic lattice so strong
There are very strong electrostatic forces of attraction between oppositely charged ions in all directions
+ate ending
Anions containing oxygen and at least one other element
+ide ending
Anions containing only one element (apart from hydroxide ions)