C2.2 Chemical Families

1. Mention the physical properties of Alkali metals

2. Does the electron affinity decrease as the size of the atoms increases in Halogen hence the reactivity decreases down the group? {Fluorine reacts more than iodine} True or False

3. Mention the characteristics of Halogens

4. Does the ionization energy decrease as you go down the group of alkali metals?

5. The elements in group 1 of the periodic table are called Alkali metals True or False

6. Mention the uses of noble gas

7. What is the name of the minimum energy required to remove an electron from the outermost energy level of an atom in the gaseous state?

8. Mention the Electrical physical properties of elements in period 3

9. The atomic radius of Halogen atom is less than the ionic radius of halogen ion e.g. Chlorine atom and Chlorine ion True or False

10. The elements in group 8 of the periodic table are called

11. Which of the following is not an example of alkali metal?

12. Explain why the melting and boiling points decrease down the group of alkali metals

13. Mention the physical properties of noble gases

14. Which of the following doesn’t belong to alkaline earth metals?

15. Explain why there is an increase in reactivity as you go down the alkali metal group from Lithium to Potassium

16. Mention the chemical properties of Alkaline earth metals

17. Mention the chemical properties of alkali metals

18. Mention the characteristics of Noble gases

19. In Alkali metals, the electrons in the outermost energy level move randomly throughout the metallic structure and are said to be delocalized?

20. How many alkali metal ions is needed to combine one oxide ion?

21. Mention the uses of Halogens and their compounds

22. Explain why Halogen melting and boiling point level increase as you go down the group? {Iodine has high melting and boiling point than Fluorine}

23. What is the name of the energy released as an ion is formed in halogen?

24. Which of the following statement describes the characteristics of alkaline earth metals?

25. Explain why is the ionic radius of an alkali metal is less than its atomic radius

26. Explain why are alkali metals are good conductors of heat and electricity

27. Which of the following is not a noble gas?

28. Mention the uses of alkali metals and their compounds

29. The elements in Group 2 of the periodic table are called?

30. Mention the physical properties of Halogens

31. Explain why Halogens cannot conduct heat and electricity

32. Which among the following element is not among Period 3?

33. Mention the examples of Halogens

34. Mention the chemical properties of Halogens

35. Mention the uses of Alkaline earth metals and their compounds

36. Non-metals in Group 7 are called

37. Why is the atomic radius of halogen atom less than the ionic radius of halogen ion?

38. Explain why atomic radii of the alkali metals increase down the group

39. Mention the physical properties of elements in period 3

40. Define Atomic Radius?

41. Due to their reactivity alkali metals are not found as free electrons rather as combined elements

42. Explain why the ionization energy decreases as you go down the group of alkali metals

43. Mention the physical properties of Alkaline earth metals