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.
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How do subatomic particles help us
understand the nature of substances.
Why are the two elements in the same group.
Same number of outer shell electrons