2. Questions Bank
  3. 9th Class
  4. Science
  5. Structure of the Atom

9th Class Science Structure of the Atom Question Bank 9th CBSE Science Structure of the Atom

  • question_answer
      The atomic number of calcium and argon are 20 and 18 respectively but the mass number of both these elements is 40. What is the name given to such a pair of elements?

    Answer:

      Since, the given elements have same mass number but different atomic numbers, they are called isobars.


You need to login to perform this action.
You will be redirected in 3 sec spinner