C2.2 Chemical Families

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

2. Mention the uses of Halogens and their compounds

3. Mention the chemical properties of alkali metals

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

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

6. Mention the physical properties of elements in period 3

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

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

9. Explain why Halogens cannot conduct heat and electricity

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

11. Mention the physical properties of Halogens

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

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

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

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

16. 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?

17. Non-metals in Group 7 are called

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

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

20. Mention the chemical properties of Alkaline earth metals

21. Define Atomic Radius?

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. Mention the characteristics of Noble gases

24. Mention the characteristics of Halogens

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

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

27. Mention the physical properties of Alkali metals

28. Mention the chemical properties of Halogens

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

30. Mention the physical properties of noble gases

31. 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

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

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

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

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

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

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

38. 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

39. Mention the uses of alkali metals and their compounds

40. Mention the physical properties of Alkaline earth metals

41. Mention the examples of Halogens

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

43. Mention the uses of noble gas