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5 June, 06:13

How many protons, neutrons, and electrons are in 195Pt2+?

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  1. 5 June, 06:54
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    The answer to your question is Protons = 78, Neutrons = 117, Electrons = 76

    Explanation:

    ¹⁹⁵Pt²⁺

    Protons are equal to the atomic number, Platinum has an atomic number of 78 so the number of protons = 78.

    The number of neutrons = Mass number - Number of protons

    = 195 - 78

    = 117

    The number of electrons is equal to the number of protons - two, we know this because of the 2 + exponent next to the Platinum symbol.

    Number of electrons = 78 - 2

    = 76
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