General knowledge Questions and Answers

11. By whom was the law of constant proportions enunciated? – Proust

12. What is the number of unpaired electrons in carbon atom? – 2

13. In an atom the order of filling up of the orbitals is governed by which principle? –

Aufbau principle

14. Regarding the atom of a chemical element, magnetic quantum number refers? –

Orientation

15. What are the atoms of the elements having same mass number but different atomic

number called? – isobars

16. Rutherford’s scattering experiment related to the size of which thing? – nucleus

17. By whom was the absolute value of charge on electron determined? – R.A. Millikan

18. Which property of the elements is a whole number? – Atomic number

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

person? – Rutherford

20. What are the atoms of the elements which have same number of neutrons called? –

Isotones