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15-06-2016
Chemistry

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What atom or ion make up 2 protons and 10 electrons?

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Аноним Аноним

21-06-2016

The atom that is made up of two protons is He. The number of neutrons is also two. The number of electrons matters in the charge. So to make 10 electrons, we add 8 more. hence, 4/2 He 8-.

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