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 ...

but while the Echo Dot is round, the Echo Pop has a flat face. It basically looks like a cross-section of the Dot. The Echo Dot (left) and Echo Pop (right) — as you can see, the Dot has been ...