Isotopes are

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Study for the Praxis Physics Exam with interactive questions and detailed explanations to enhance your understanding of physics concepts. Prepare for your exam efficiently!

Multiple Choice

Isotopes are

Explanation:
Isotopes are atoms of the same element that differ in the number of neutrons in the nucleus. Since the number of protons is the same, they belong to the same element and have the same chemical behavior, but the different neutron count changes the mass and can affect stability. If you changed the number of protons, you’d have a different element, not an isotope. Altering the number of electrons would just change the atom’s charge state, not its isotopic identity.

Isotopes are atoms of the same element that differ in the number of neutrons in the nucleus. Since the number of protons is the same, they belong to the same element and have the same chemical behavior, but the different neutron count changes the mass and can affect stability. If you changed the number of protons, you’d have a different element, not an isotope. Altering the number of electrons would just change the atom’s charge state, not its isotopic identity.

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