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Chemistry, 16.10.2020 06:01 milkshakegrande101

What is the mass of an atom if it has 11 protons, 12 neutrons, and 11 electrons A,22, B.23, C34, D 11

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What is the mass of an atom if it has 11 protons, 12 neutrons, and 11 electrons A,22, B.23, C34, D...
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