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ChemistryChemistry
18 November, 15:07

Copper has an atomic number 29. That means that there are 29 protons in the nucleus of each copper atom. That's what the atomic number is; the number of protons in an atom of a certain element. If one copper atom contains 29 protons, how many copper atoms could you make out of 145 protons?

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  1. 18 November, 17:22
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    you can make 5 copper protons

    I found out by taking 29 and multiplying by different numbers but you can also divide by 5.
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Home » Chemistry » Copper has an atomic number 29. That means that there are 29 protons in the nucleus of each copper atom. That's what the atomic number is; the number of protons in an atom of a certain element.
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