by Alison | Apr 11, 2022 | Exam
Writing balanced chemical equations can be a nightmare, especially if you are not given the chemical formulae in the examination question. I have written a help sheet that lists the chemical formulae that you need to learn as well as helps you work out ionic formulae....
by Alison | Apr 2, 2022 | Exam
The periodic table is a useful tool for chemists and can also provide useful information during your chemistry exam. Information on electronic configuration Group number (column) is the number of electrons in the outer shell of an atom. Period number (row) is the...
