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The top documents tagged [number of protonsso]
MATTER UNIT STRUCTURE OF AN ATOM. Atom : the smallest unit of matter that retains the identity of the substance
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Learning Goal #3: Discriminate between the relative size, charge, position, and number of protons, neutrons, and electrons of different elements
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AQA Chemistry Unit 1. Atoms All substances are made of atoms An element contains only one type of atom A compound contains more than one type of atom
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