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OpenStudy (anonymous):
The atomic and mass numbers for four different atoms are given below. Which two are isotopes? Atom Atomic Number Mass Number A 100 257 B 101 257 C 101 260 D 103 259
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OpenStudy (anonymous):
Cmon doc. Help me out
OpenStudy (anonymous):
B and C. They are the same atom but have different amounts of neutrons making them isotopes.
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