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25 March, 23:46

An atom nucleus contains 28 protons and the atom has a mass number of 60. how many neutrons does this atom contain? how many electrons? what is the identity of the atom?

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  1. 26 March, 02:40
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    Number of neutrons = mass number - proton number = 60 - 28 = 32

    electrons = proton number for a neutral atom = 28

    the identity of the atom is written as

    60

    . X

    28
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