Atomic Structure – Online MCQs – Physics 10th

1. The nucleus contains the neutrons and the protons bound tightly together by the nuclear forces, known as:

2. The relative mass of an electron is:

3. Isotopes of an element have:

4. Neutrons carry:

5. An atom usually has:

6. Atomic mass of an element is equal to:

7. In magnitude, a proton has:

8. Electrons are bound by a positively charged nucleus with the:

9. It distinguishes one element from another.

10. The protons and neutrons are collectively called:

11. The number of neutron(s) in Protium is:

12. Atomic mass (A) of deuterium is:

13. The atomic number (Z) tells us:

14. The maximum mass of an atom is concentrated in:

15. It gives an isotope different physical properties.

16. The number of electrons in an atom will be:

17. Symbol of Tritium is:

18. Which expression is correct for atomic mass, A?

19. Consider isotope ₉₂Cl²³⁷ of uranium. The number of neutrons in it is:

20. Electron has a: