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Copper exists as a mixture of two isotopes. Copper-63 is 69.17% abundant and it has a mass of 62.9296 amu. Copper-65 is 30.83% abundant and it has a mass of 64.9278 amu. Calculate the atomic mass of copper and chose the correct answer. | Koper kom voor as a mengsel van twee isotope. Koper-63 se voorkoms is 69.17% met 'n massa van 62.9296 amu. Koper-65 se voorkoms is 30.83% met 'n massa van 64.9278 amu. Bereken die atoommassa van koper en kies die korrekte antwoord. |
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