Dot and cross diagrams help us to model when ions are formed from atoms. Here’s an example using sodium and chlorine. They form ions which bond to form sodium chloride. 2. Work out how many ...

A dot and cross diagram for sodium chloride suggests that it is made up of pairs of sodium and chloride ions. It is not. A 3D construction model shows how the ions are arranged in a lattice structure.

Six structures exhibited by the rotating sodium ion pump were reconstructed in 3D using cryo-electron microscopy ... These all have a similar structure in which an extramembrane part for ...

The atom that gains an electron becomes a negative ion. A positive and negative ion attract each other and form an ionic bond. Students will look at animations and make drawings of the ionic bonding ...