Question What is true about stable isotopes?(1 point) Responses Isotopes are naturally occurring in nature and always unstable. Isotopes are naturally occurring in nature and always unstable. Isotopes with more neutrons than protons are always stable. Isotopes with more neutrons than protons are always stable. 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.
The correct answer is: A stable nucleus has a similar number of protons and neutrons.
A stable nucleus has a similar number of protons and neutrons.
To correctly answer the question, we need to determine which statement about stable isotopes is true.
Let's evaluate each response option:
1. "Isotopes are naturally occurring in nature and always unstable."
This statement is incorrect because not all isotopes are unstable. Some isotopes are stable.
2. "Isotopes with more neutrons than protons are always stable."
This statement is also incorrect. While some isotopes with more neutrons than protons are stable, it is not a universal rule. There are examples of isotopes with an excess of neutrons that are unstable.
3. "A stable nucleus has a similar number of protons and neutrons."
This statement is often true. Generally, stable isotopes often have a roughly equal number of protons and neutrons. However, there can be exceptions to this rule as well.
4. "Isotopes are always unstable because they are radioactive."
This statement is incorrect as it is the opposite of the truth. Isotopes that are unstable are indeed radioactive, but not all isotopes are unstable.
From the given options, the most accurate statement is "A stable nucleus has a similar number of protons and neutrons." However, it is important to note that there can be exceptions to this rule depending on the specific isotope being considered.