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Today, 14:58

How many protons are in the nucleus of the isotope in-115?

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  1. Today, 15:16
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    Isotope In-115, is the element indium.

    Indium has an atomic number of 49.

    In this case, mass number is 115.

    The atomic number = # of protons.

    Therefore 49 protons in isotope In-115.
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