TASOK Physical Science – Semester 1 Review Guide
Using your periodic table,
1. Name the element with an atomic number of 19. 1 pt
2. Name the element with 12 protons. 1 pts
3. List the number of protons that nitrogen has. 1 pt
4. Write the symbol for Sodium. 1 pt
5. Name the units that we use to measure the mass of elements on the Periodic Table. 1 pt
6. State the number of non-metals that we find on the Periodic Table. 1 pt
7. State the name of the person who is credited with creating the Periodic Table. 1 pt
8. Which element is more reactive, sodium or aluminum? 1 pt Explain why you think this. 1 pt
9. Find the number of neutrons that most atoms of lithium have. Show and explain your work and
reasoning. 2 pts
10. Explain why there are different numbers of elements in some periods. 2 pts
11. State the characteristic that elements in a group share. 1 pt
12. State the characteristic that elements in a period share. 1 pt
13. Name an element with 2 valence (outer shell) electrons. 1 pts
14. Draw the valence electrons in a dot diagram for magnesium. 1 pt
15. Show the transfer of electrons that occurs when calcium bonds with chlorine. 1 pt
16. Name the compound you drew in # 4. 1 pt
17. Name an ion with a +3 charge. 1 pt
18. Name the compound you drew in #7. 1 pt
19. Draw potassium oxide showing each atom and all the electrons transferred. 2 pts
20. Discuss the difference in ionic radius between sodium and magnesium. 1 pt
21. Discuss the difference in the ionic and atomic radii of potassium. 1 pt
22. Discuss one major issue with mineral mining in the DRC. 3 pts
23. Discuss one potential solution to the problem in #22. 3 pts
24. Define covalent bond. 1 pt
25. Draw the covalent bond between two hydrogen atoms. 1 pts
26. Draw the covalent bond between two nitrogen atoms. 1 pt
27. Name 5 of the diatomic molecules. 1 pt
28. Draw the molecule that forms with one carbon atom and two oxygen atoms. 1 pt
29. Name the molecule you drew in #5. 1 pt
30. Write the structural formula for the molecule you drew in #5. 1 pt
31. Draw the covalent bonds in phosphate PO4 -3. Show all the electrons. 1 pt
32. Name an atom that could form an ionic bond with phosphate. 1 pt
33. Draw the transfer of electrons that would make that ionic bond occur. 1 pt
34. Draw a polar covalent molecule, showing how the electrons are shared. 1 pt
35. Describe the attractions that form between polar covalent molecules and why they are
important for life on Earth. Be specific. 2 pts
36. Define metallic bond. 1 pt
37. State the part of the periodic table where useful metals are found. 1 pt
38. Describe the relationship between valence electrons and strength of metallic bonds. 1 pt
39. List and describe 4 properties of metals that are useful to people. 4 pt
40. Define alloy. 1 pt
41. List and describe 2 useful alloys. Discuss why they are more useful than the pure elements that
they contain. 4 pts
42. Define reactants. 1 pt
43. Define products. 1 pt
44. Balance the following equations and identify the type of reaction: 2 pts each
A.
FeCl2 + AgNO3
B.
NH3 + H2SO4
C.
MgCl2 + Na2SO4
D.
Ca + S
>>> Fe(NO3)2 + AgCl
>>>>
>>>>
>>>>
(NH4)2SO4
MgSO4 + NaCl
CaS
E. Al2(SO4)3 + BaCl2 >>>>
BaSO4 + AlCl3
F. Al2S3>>>>>>>> Al + S
G. H2SO4 + Fe
H. C6H12O11 + O6
>>>>>
>>>>
H2 + Fe2(SO4 )3
CO2 + H2O
45. Discuss the energy involved in breaking and making bonds. 2 pts
46. Define endothermic reactions. 1 pt
47. Define exothermic reactions. 1 pt
48. Describe a method for determining whether a reaction is endothermic or exothermic. Be
specific. 2 pts
49. Draw a graph showing the energy change as the reaction progresses for an endothermic
reaction. Be sure to label the axes and give the graph a title. 4 pts
50. Draw a graph showing the energy change as the reaction progresses for an exothermic reaction.
Be sure to label the axes and give the graph a title. 4 pts