Question

which is true about stable isotopes? (1 point) isotopes that are naturally occurring in nature are always unstable. a stable nucleus has a similar number of protons and neutrons. isotopes with more neutrons than protons are always stable. isotopes are always unstable because they are radioactive.

Explanation:

Stable isotopes have a stable nucleus which typically has a similar number of protons and neutrons. Not all isotopes are unstable or radioactive; some are stable. Isotopes with more neutrons than protons are not always stable, and naturally - occurring isotopes can be stable.

Answer:

A stable nucleus has a similar number of protons and neutrons.