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15 February, 00:39

How many times more massive is a copper atom than an aluminum atom?

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  1. 15 February, 00:42
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    2.355 times

    Explanation: An aluminium atom has an atomic mass of 26.98 g while a copper atom has an atomic mass of 63.55 g. The ratio of the mass of Aluminium atom to mass of a copper atom is:

    = 26.98 g : 63.55 g

    = 1 : 2.355

    Therefore, the mass of a copper atom is 2.355 times the mass of an aluminium atom. A copper atom is 2.355 times more massive than an aluminium atom.
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