Chemistry Worksheet (Page 3 of 4) in pdf

Chemistry Worksheet Page 3

Name: _____________________________ Block: ______

Chemistry I

22. Complete the following table.

Group

Common Name

Alkali metals

Alkaline Earth metals

13 / 3A

--------

16 / 6A

--------

17 / 7A

Halogens

23. a) In group 1, which element is the most

active?Fr

b) Metallic activity tends to (increase, decrease) as one goes down Group 1.

24. a) Which element is most active in group 17?

b) Nonmetal activity tends to (increase, decrease) as one goes down Group 17.

25. Name all the elements called metalloids.

B, Si, Ge, As, Sb, Te, Po

26. Which element is a metal: Ba (56) or At (85)?

27. Which period is Ca (20) in?

(VA)28. What is the number of the group N (7) is in?

29. Which element is more electronegative: Rb (37) or Al (13)?

30. Which element has a larger radius: Na (11) or Cl (17)?

31. Which element has a higher ionization energy: Br (35) or O (8)?

32. Which element is the most active nonmetal?

33. Which element is the most active metal?

34. Which element would be more likely to lose electrons to become stable: Sr (38) or Te (52)?

35. Which element has 5 valence electrons? B (5) or P (15)?

*36. Which element has 18 electrons when it is an ion with a –1 charge?

We have not covered this

yet

37. What atomic number would an isotope of Uranium have?

38. How many neutrons does bromine-80 have?

Chemistry Worksheet Page 3