Exam (elaborations)
AQA A Level AS Unit 1 Chemistry with 100% correct answers
Atoms Consists of: protons- [relative mass 1] [relative charge +1] neutrons- [relative mass 1] [relative charge 0] electrons-[relative mass 1/1840] [relative charge -1] Electron arrangement in atoms determines its chemical properties reactions it does. 00:02 01:39 Atom...
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