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protons 10 neutrons 10 electrons 10
what has 10 protons and 10 electrons
element with 10 protons and 10 neutrons
protons 7 neutrons 8 electrons 10
protons 9 neutrons 10 electrons 9
protons 8 neutrons 10 electrons 8
protons 7 neutrons 7 electrons 10
what has 9 protons and 10 neutrons
what has 12 protons and 10 electrons
element with 10 protons and 11 neutrons
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