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Chemistry, 14.11.2020 14:00 vanessasmith47
A model of an atom which contains 24 electrons, 25 protons and 26 neutrons has some of its particles inside a nucleus at the centre of the model. What is the nucleon number (mass number) of the atom?
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A model of an atom which contains 24 electrons, 25 protons and 26 neutrons has some of its particles...
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