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24 February, 07:22

If an atom has 34 electrons, 46 neutrons, and 34 protons, what is its mass number? what is the name of the element?

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  1. 24 February, 07:27
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    Mass number = protons + neutrons = 34+46 = 80

    the element with an atomic number of 34 and mass number of 80 is selenium
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