C2.2 Chemical Families

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

2. Explain why Halogens cannot conduct heat and electricity

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

4. 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?

5. Mention the physical properties of Alkali metals

6. Mention the uses of Halogens and their compounds

7. Mention the uses of alkali metals and their compounds

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

9. Mention the chemical properties of Alkaline earth metals

10. Non-metals in Group 7 are called

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

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

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

14. Mention the chemical properties of alkali metals

15. Mention the chemical properties of Halogens

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

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

18. Mention the physical properties of Halogens

19. Mention the characteristics of Halogens

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

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

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

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

24. 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

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

26. Mention the uses of noble gas

27. 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

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

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

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

31. Define Atomic Radius?

32. Mention the physical properties of elements in period 3

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

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

35. Mention the physical properties of Alkaline earth metals

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

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

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

39. Mention the examples of Halogens

40. Mention the characteristics of Noble gases

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

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

43. Mention the physical properties of noble gases