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Biology, 17.07.2019 09:40 abagailb03

Which of the following elements has the highest atomic mass? helium: 2 protons and 2 neutrons nitrogen: 7 protons and 7 neutrons oxygen: 8 protons and 8 neutrons hydrogen: 1 proton and no neutrons

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Which of the following elements has the highest atomic mass? helium: 2 protons and 2 neutrons ni...

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