Physics, 26.06.2019 14:00 brighamc23

U-238 has protons and146 neutrons. a particular isotope of plutonium has 94 protons, neutrons, and a mass number of 241. thorium- has 90 protons and 137 neutrons.

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U-238 has protons and146 neutrons. a particular isotope of plutonium has 94 protons, neutrons, and a...