11. Glucose molecule breaks down into . . . . . . . .
12. . . . . . . . . is the largest atom in these elements?
13. In modern periodic tables silicon (Z = 14) are placed between . . . . . . . . and . . . . . . . .?
14. Which of the following statements is most appropriate for transition elements?
15. What did Dmitry Mendeleev prepare?
16. If an element has an atomic number of 20, its chemical properties will be similar to which of the following elements?
17. If the electronic configuration of an element is 2, 8, 2, then which period of modern periodic table will it belong to?
18. Match List I with List II
List-I
List-II
a. Modern Periodic Law
1. Groups
b. Father of Periodic Table
2. Moseley
c. Vertical lines in Modern Periodic Table
3. Periods
d. Horizontal lines in Modern Periodic Table
4. Mendeleef
| List-I | List-II |
| a. Modern Periodic Law | 1. Groups |
| b. Father of Periodic Table | 2. Moseley |
| c. Vertical lines in Modern Periodic Table | 3. Periods |
| d. Horizontal lines in Modern Periodic Table | 4. Mendeleef |
19. . . . . . . . . is the element present in the fourth period and the second group.
20. The element X forms an oxide, whose formula is X2O3, the element X is more likely to have the same group in the periodic table as . . . . . . . .?
Read More Section(Periodic Classification of elements)
Each Section contains maximum 100 MCQs question on Periodic Classification of elements. To get more questions visit other sections.