Chemistry Atomic Structure Test Online MCQs

1. The velocity of a photon is:

2. Among the following ions are, which are has the highest paramagnetism?

3. The number of unpaired electrons in fluorine atoms is/are:

4. Which of the following atoms has a non-spherical outermost orbital.

5. When the electron is excited from K level to M level we get:

6. In the case of atomic spectrum of hydrogen which series of lines lie in the visible region?

7. No two electrons in an atom can have the same values of all four quantum numbers according to:

8. Two wavelength of an electron:

9. The exchange of particles considered responsible for keeping the nucleons together are:

10. Charge on an electron was shown by:

11. Bohr’s concept of the orbit in an atom was contradicted by:

12. Isotopes have different:

13. Charge on fundamental particle neutrino is:

14. The number of neutrons in ³⁹₁₉ K are

15. In Lyman series an electron jumps from higher energy level to:

16. The fundamental particle that has been least mass is:

17. The charge on atom of ²⁷₁₃ Al is:

18. Mass of positron is the same to that of:

19. Which of the following has highest mass?

20. Cathode rays contain a stream of: