Multiple Choice
In nature, bromine occurs primarily as two stable isotopes, 79Br and 81Br. Which isotope is slightly more abundant and therefore the most common isotope of bromine?
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4. Atoms and Elements
Isotopes
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How do isotopes of a given element differ from one another?
A
They have different numbers of electrons but the same number of protons.
B
They have different numbers of protons but the same number of neutrons.
C
They have different chemical symbols because they are different elements.
D
They have different numbers of neutrons but the same number of protons.
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