Search over 10,000 free study notes

In 100g of compound, the amount of each element is given by: C: n = 52.2/12 = 4.35 H: n = 9.3/1 = 9.3 N: n = 8.7/14 = 0.621... O: n = 29.8/16 = 1.8625 Dividing through by the smallest amount (0.621) gives...

Bonding is about the movement of electrons-electrons are NEGATIVELY charged-the electrons move to allow atoms to become more STABLE by having a full outer shell of electrons-The periodic table is useful t...

As the question is 2 marks, show working to ensure you get a mark even if answer is slightly wrongFrom periodic table you can see that the relative atomic masses are oxygen = 16; aluminium = 27; sulfur = ...

The reactivity of group 1 metals increases as you go down the group. This is due the number of electron shells increasing, leading to the distance between the outermost electron and the nucleus. The incre...

Alkyl groups increase basicity because: 1) They push electron density onto the nitrogen atom, which makes the nitrogen lone pair more attractive to hydrogen ions. 2) They stabilise the positive charge on ...