GOV EXAM ADDA

1. Spectral lines of the hydrogen atom corresponding to emissions in the ultraviolet region is

Answer & Solution

2. Atoms with the same number but having different nuclear charges are called

Answer & Solution

3. Hydrogen peroxide has the same number of electrons as(Iso-electronic Species)

Answer & Solution

4. Radius of an electron is of the order of

Answer & Solution

5. Calculate the shielding suffered by valence electron in fluorine

Answer & Solution

6. Particles which can be added to the nucleus of an atom without changing chemical properties are called

Answer & Solution

10. The atomic number of carbon is 6 and its atomic mass is 12. How many are there protons in the nucleus of carbon?

Answer & Solution

11. The radius of an atomic nucleus is of the

Answer & Solution

12. According to Rutherford’s atomic model, the electron inside an atom is

Answer & Solution

13. ‘Atomic theory’ of matter was given by

Answer & Solution

14. Discovery of the nucleus of an atom was due to the experiment carried out by

Answer & Solution

15. Which of the following is not a nucleon?

Answer & Solution

16. The size of nucleus is measured in

Answer & Solution

17. Rutherford’s α scattering experiment related to the size of the

Answer & Solution

18. The fundamental particles that composed on atom are

A. Proton, electron, Photon

B. Proton, electron, deuteron

C. Proton, electron, meson

D. Proton, electron, Neutron

Answer & Solution

19. Nucleus of an atom consists of

A. Neutron

B. Electron, Proton and Neutron

C. Proton

D. Proton and Neutron

Answer & Solution

20. Atomic size is the order of

Answer & Solution

21.

Answer & Solution

22.

Answer & Solution

23.

Answer & Solution

1. Spectral lines of the hydrogen atom corresponding to emissions in the ultraviolet region is

2. Atoms with the same number but having different nuclear charges are called

3. Hydrogen peroxide has the same number of electrons as(Iso-electronic Species)

4. Radius of an electron is of the order of

5. Calculate the shielding suffered by valence electron in fluorine

6. Particles which can be added to the nucleus of an atom without changing chemical properties are called

7. The number of electrons present in H+ is

8. When a helium atom loses an electron, it is converted to a

9. Mg2+ is isoelectronic with

10. The atomic number of carbon is 6 and its atomic mass is 12. How many are there protons in the nucleus of carbon?

11. The radius of an atomic nucleus is of the

12. According to Rutherford’s atomic model, the electron inside an atom is

13. ‘Atomic theory’ of matter was given by

14. Discovery of the nucleus of an atom was due to the experiment carried out by

15. Which of the following is not a nucleon?

16. The size of nucleus is measured in

17. Rutherford’s α scattering experiment related to the size of the

18. The fundamental particles that composed on atom are

19. Nucleus of an atom consists of

20. Atomic size is the order of

21.

22.

23.