1. The element with atomic number 35 belongs to

2. The electronic configuration of halogen is

3. The electron affinity for the inert gases is –

4. Which of the following oxides is amphoteric in character?

5. Periodic classification of elements is used to examine the

6. Which of the following properties generally decreases along a period?

7. The electronic configuration of an element is 1s², 2s² 2p⁶, 3s² 3p³. What is the atomic number of the element which is just below the above element in the periodic table

8. The statement that is not correct for periodic classification of elements is:

9. On the Paulings electro negativity scale the element next to F is

10. Arrange S, O and Se in ascending order of electron affinity

11. How many elements are there in 6th period of periodic table?

12. Correct order of ionization enthalpies is

13. The reduction in atomic size with increase in atomic number is a characteristic of elements of-

14. Diagonal relationship is shown by

15. Why the size of an anion is larger than the parent atom?

16. The chemistry of lithium is very similar to that of magnesium even though they are placed in different groups. Its reason is:

17. Increasing order of electro negativity is

18. The element californium belongs to a family of :

19. Which of the following is not an actinoid?

20. The order of increasing sizes of atomic radii among the elements O, S, Se and As is :