Multiple Choice
Copper has two naturally occurring stable isotopes, and . Which statement correctly compares these two isotopes?
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4. Atoms and Elements
Isotopes
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Which of the following best describes isotopes?
A
Atoms of different elements that have the same number of protons
B
Atoms of the same element that have different numbers of neutrons (and therefore different mass numbers)
C
Atoms of the same element that have the same numbers of protons and neutrons but different electron configurations
D
Atoms of the same element that have different numbers of protons (and therefore different atomic numbers)
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