Which is true about stable isotopes?(1 point)

Question

Responses

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.

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

Isotopes with more neutrons than protons are always stable.

Answer 1

The statement that is true about stable isotopes is:

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

While many stable isotopes do have a relatively balanced ratio of protons to neutrons, it is important to note that the exact ratio can vary depending on the element. The other statements are false because not all isotopes are unstable, and not all isotopes with more neutrons than protons are stable.