If a nucleus was the size of a raisin, the rest of the atom would be the size of a sports stadium
masses and charges of subatomic particles
1.15 Sub atomic particles Students should: 1.15 know the structure of an atom in terms of the positions, relative masses and relativecharg...
Covalent bonding can lead to the formation of lattices
Covalent bonds form when electrons are shared between nuclei Atoms which can form two or more covalent bonds can bond with other similar ato...
Ice melts at 0 degrees C, Diamond remains solid until its temperature is above 3500 degrees
Look at the images of ice and diamond. In some senses you might say the two substances are similar. Both substances are solid,&n...
Ice melts at 0 degrees C, Diamond remains solid until its temperature is above 3500 degrees
Look at the images of ice and diamond. In some senses you might say the two substances are similar. Both substances are solid,&n...
looking for patterns
1.38 Activity. Know your ions. Students should: 1.38 know the charges of common ions listed You will have noted from the video that metal ...
the formulae of five polyatomic ions and one monatomic ion to be learnt.
1.39 Activity. Finding formulae Students should: 1.39 write formulae for compounds formed between the ions listed Watch the video closely ...
Ionic compounds form when the atoms of a metal combine with the atoms of a non - metal
Particle theory explains why the smell of cooking in the kitchen can quickly be smelt by people in other rooms.
1.3 Activity 4. A particular problem Students should: 1.3 understand how the results of experiments involving the dilution of coloured sol...
The mass spectrum of boron
1.17 Activity 2. Calculating relative atomic mass. Students should: 1.17 be able to calculate the relative atomic mass of an element (Ar) ...