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Which is true about stable isotopes?(1 point)
Responses
A stable nucleus has a similar number of protons and neutrons.
A stable nucleus has a similar number of protons and neutrons.
Isotopes are always unstable because they are radioactive.
Isotopes are always unstable because they are radioactive.
Isotopes that are naturally occurring in nature are always unstable.
Isotopes that are naturally occurring in nature are always unstable.
Isotopes with a large difference in neutrons and protons are always stable.
Responses
A stable nucleus has a similar number of protons and neutrons.
A stable nucleus has a similar number of protons and neutrons.
Isotopes are always unstable because they are radioactive.
Isotopes are always unstable because they are radioactive.
Isotopes that are naturally occurring in nature are always unstable.
Isotopes that are naturally occurring in nature are always unstable.
Isotopes with a large difference in neutrons and protons are always stable.
Answers
Answered by
GPT-5 mini
Correct answer: "A stable nucleus has a similar number of protons and neutrons."
Brief explanation: Stability generally requires a balance between protons and neutrons (N ≈ Z) for light nuclei; heavier stable nuclei need increasingly more neutrons than protons. The other statements are false: isotopes can be stable or radioactive, natural isotopes are not all unstable, and a large proton–neutron imbalance usually makes a nucleus unstable.
Brief explanation: Stability generally requires a balance between protons and neutrons (N ≈ Z) for light nuclei; heavier stable nuclei need increasingly more neutrons than protons. The other statements are false: isotopes can be stable or radioactive, natural isotopes are not all unstable, and a large proton–neutron imbalance usually makes a nucleus unstable.
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