The activity sheet will serve as the Evaluate component of ... Show an animation of snap cubes used as models of atoms to make different molecules. Show the animation Models of Atoms and Molecules.

Atoms and molecules make up all of the different substances, including solids, liquids, and gases that are all around us. Models can be used to represent atoms and these models can be rearranged to ...

Listen to the full series on BBC Sounds. Hans Geiger and Ernest Marsden tested the plum pudding model. They aimed beams of positively-charged particles at very thin gold foil. These particles ...

IT has been generally admitted that, although optical activity can be developed in compounds containing asymmetric atoms of carbon, nitrogen, phosphorus, arsenic, sulphur, selenium, tin ...

Listen to the full series on BBC Sounds. Hans Geiger and Ernest Marsden tested the plum pudding model. They aimed beams of positively-charged particles at very thin gold foil. These particles ...