Question
Isotopes of an element differ in the number of $\ldots \ldots \ldots \ldots .$ in their nuclei.
Step 1
Isotopes are atoms of the same element that have the same atomic number but different mass numbers. The atomic number is the number of protons in an atom, and the mass number is the sum of the number of protons and neutrons. Show more…
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Isotopes differ in their a. number of protons. b. atomic number. c. number of neutrons. d. number of electrons.
What are isotopes? Do the isotopes of an element have the same atomic number? Do they have the same mass number? Explain.
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