Chemistry

Chemistry, 28.06.2019 22:50, Tthhdd5790

Which of the isotopes are radioactive? check all that apply. hydrogen-1 hydrogen-3 helium-4 carbon-14 uranium-235 copernicium-277 fermium-252 carbon-12

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Which of the isotopes are radioactive? check all that apply. hydrogen-1 hydrogen-3 helium-4 carbon-...

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