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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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blackmamba_8 blackmamba_8
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3 years ago
Naturally occurring copper has two isotopes: copper-63 (62.9296 amu) and copper-65 (64.9278 amu). Using the average atomic mass from the periodic table, which of the following is the best estimate of the percent abundance of the two isotopes of copper?


▸ 50% copper-63 and 50% copper-65

▸ 25% copper-63 and 75% copper-65

▸ 75% copper-63 and 25% copper-65

▸ 90% copper-63 and 10% copper-65

▸ 10% copper-63 and 90% copper-65
Textbook 
Chemistry: An Atoms First Approach

Chemistry: An Atoms First Approach


Edition: 3rd
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Jessie19950607Jessie19950607
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