C2.2 Chemical Families

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

2. Mention the physical properties of Alkaline earth metals

3. 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

4. Mention the uses of alkali metals and their compounds

5. Mention the physical properties of Alkali metals

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

7. Mention the chemical properties of alkali metals

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

9. Mention the uses of Halogens and their compounds

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

11. Mention the examples of Halogens

12. Mention the physical properties of elements in period 3

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

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

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

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

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

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

19. 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

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

21. Mention the characteristics of Halogens

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

23. Define Atomic Radius?

24. Mention the chemical properties of Halogens

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

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

27. Mention the physical properties of noble gases

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

29. Mention the characteristics of Noble gases

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

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

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

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

34. Mention the chemical properties of Alkaline earth metals

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

36. Mention the uses of noble gas

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

38. 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?

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

40. Non-metals in Group 7 are called

41. Explain why Halogens cannot conduct heat and electricity

42. Mention the physical properties of Halogens

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