1. Tardigrade
  2. Question
  3. Physics
  4. Consider the following statements: I. All isotopes of an element have the same number of neutrons. II. Only one isotope of an element can be stable and non-radioactive. III. All elements have isotopes. IV. All isotopes of carbon can form chemical compounds with oxygen-16. Choose the correct option regarding an isotope.

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Q. Consider the following statements:
I. All isotopes of an element have the same number of neutrons.
II. Only one isotope of an element can be stable and non-radioactive.
III. All elements have isotopes.
IV. All isotopes of carbon can form chemical compounds with oxygen-16.
Choose the correct option regarding an isotope.

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Solution:

Isotopes have same number of protons. All isotopes of few elements are stable and non-radioactive. Also, all isotopes of few elements are unstable and radioactive. All elements have isotopes.
All isotopes of carbon can form compounds with oxygen.
So, only statements III and IV are correct.