1. Created by Educational Technology Network. www.edtechnetwork.com 2009

2. Column 1
Column 2
Column 3
Column 4
Column 5 10 20 30 40 50

3. Clue
A crystal lattice is a three-dimensional structure formed by positive ions surrounded by negative ions and negative ions surrounded by positive ions. True or False

4. Answer 1 – 10
True

5. Clue
Group 13 elements tend to acquire which charge when they form ions?

6. Answer 1 – 20 3+

7. Clue
What ion is the atom with the electron configuration 1s22s22p63s1 most likely to form?

8. Answer 1 – 30
Na+

9. Clue
A cation is a negatively charged atom. True or False

10. Answer 1 – 40
False

11. Clue
What is the correct formula for the compound formed between magnesium and the phosphate ion?

12. Answer 1 – 50
Mg3(PO4)2

13. Clue
In an ionic bond, two cations can bond together to form a compound. True or False

14. Answer 2 – 10
False

15. Clue
A formula unit of calcium bromide has two bromide ions corresponding to each calcium ion in the compound. What is the formula of calcium bromide?

16. Answer 2 – 20
CaBr2

17. Clue
What is the formula for ammonium carbonate?

18. Answer 2 – 30
(NH4)2CO3

19. Clue
Is a high melting point a physical property of ionic compounds in their solid state?

20. Answer 2 – 40
Yes

21. Clue
A compound has the formula X3Y. For every 15 X atoms present in this compound, how many Y atoms are there?

22. Answer 2 – 50 5

23. Clue
Which is the correct formula for the ionic compound that results from an atom with 2 valence electrons (X) and an atom with 5 valence electrons (Y)?

24. Answer 3 – 10
X3Y2

25. Clue
Elements in the s- or p-blocks generally have only one common oxidation number, while d-block elements can have more than one possible oxidation number. True or False

26. Answer 3 – 20
True

27. Clue
What is the correct name for the compound CoCO3?

28. Answer 3 – 30
cobalt(II) carbonate

29. Clue
When the magnesium sulfide ion forms which atom gains electrons?

30. Answer 3 – 40
sulfur

31. Clue
What is the charge that results when oxygen becomes an ion?

32. Answer 3 – 50 2-

33. Clue
The element, neon, with the electron configuration 1s 2s 2p , will not form a chemical bond with another element, oxygen. True or False

34. Answer 4 – 10
True

35. Clue
What is the correct formula for the compound formed between beryllium and nitrogen?

36. Answer 4 – 20
Be3N2

37. Clue
What is the correct name for the compound Na3P?

38. Answer 4 – 30
sodium phosphide

39. Clue
What is the force that holds two atoms together?

40. Answer 4 – 40
chemical bond

41. Clue
Elements from groups 2 and 15 will combine in what ratio?

42. Answer 4 – 50
3:2

43. Clue
What is the correct formula for the compound chromium (II) nitrate?

44. Answer 5 – 10
Cr(NO3)2

45. Clue
What is the correct name for the compound Ca(ClO2)2?

46. Answer 5 – 20
calcium chlorite

47. Clue
What is the correct formula for the compound manganese (III) fluoride?

48. Answer 5 – 30
MnF3

49. Clue
When an atom gains electrons, it becomes positively charged. True or False

50. Answer 5 – 40
False

51. Clue
Give the ion (not the atom), then the electron configuration for the oxide ion.

52. Answer 5 – 50
O2-, 1s22s22p6