AQA Additional Science GCSE TRANSFORMATION
Chemistry 2 Session1. How do subatomic particles help us understand the nature of substances.
The diagram shows the structure of a lithium atom. Label it to show an electron, proton and neutron Electron proton neutron
The diagram shows two elements from the same group in the periodic table. Name the part labelled X the nucleus. Why are the two elements in the same group. Same number of outer shell electrons
Atoms of calcium, phosphorous and fluorine are shown below. Use the information to complete the table 15 10 20