Physics, 11.02.2020 18:27 icantdomath4910

An element X has two isotopes. X-15 has 7 protons and 8 neutrons. Determine the atomic number and mass of the second isotope. Which has 10 neutrons in its nucleus

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An element X has two isotopes. X-15 has 7 protons and 8 neutrons. Determine the atomic number and ma...