Click here to visit Main Content
Notes on ice and salt structures
At this stage, we will use the term ‘atom’ for the sake of simplicity: we are not considering ions or ionic bonding.

Return to main content L1.1

Notes on ice and salt structures (zoom animation)
For simplicity, these are ‘2-d’ rather than ‘3-d’ images.
The two different structures are a result of different types of bonding. There are three types of bonding: covalent, ionic and metallic. The type used depends on the atoms involved: i.e. what is bonding to what.
Some combinations of atoms will lead to molecular structures. At this stage students simply need to understand that atoms do bond and that there are two possible structures.

Return to main content L1.2

Notes on structure and repeating unit of salt
The animation and accompanying image make the point that salt – unlike ice – has no obvious molecules, but it
does have a repeating pattern (again, this is a simplified ‘2-d’ version) and we can think of these ‘repeat units’ as
being what gives salt its particular properties. It does not matter whether we see this as a repeat pattern
of ‘vertical’ or of ‘horizontal’ units.

Return to main content L1.3
main content l1.1
main content l1.2
main content l1.3

more info
tgl1: notes
tgl2: notes
tgl3: notes
tgl4: notes
tgl5: notes
tgl6: questions
more info
  < prev | next >  
  user guide