Honors/Magnet Chemistry
Fall Semester Material
Midterm Study Guide
1. How is the modern periodic table arranged?
2. What is the maximum number of valence electrons an atom can have?
3. When an atom gains electrons, what charge does it have? How about when it loses electrons?
4. What is the part of the experiment that the other results will be compared to? What is a dependent variable? What is
an independent variable?
5. How do we write 0.0000005685 in scientific notation?
6. Define the Law of Conservation of Matter in terms of reactants and products.
7. Do protons have to be equal to neutrons? What about electrons?
8. As the energy of a wave increases, does the wavelength increase or decrease? What about the frequency as you
increase energy?
9. In the visible light spectrum, which color of light has the most energy? The least?
10. What types of matter make up nonmetals? Metals?
11. What happens to electrons in covalent compounds? What happens to electrons in ionic compounds?
12. What are the lab safety symbols for: wearing an apron, washing your hands, sharp objects, toxic materials, wear
goggles, flammable?
13. What is a qualitative measurement? What is a quantitative measurement?
14. How many individual atoms make up one unit of aluminum chloride, AlCl3?
15. What are the types of separation techniques? Describe them.
16. Write three examples of a chemical change. Write three examples of a physical change.
17. A chemical composition of two or more different elements joined together in fixed proportions is known as a(n) ___.
18. A proton has a charge of ___. A neutron has a charge of ____. An electron has a charge of ____.
Atoms
Atom
Protons
Neutrons
Electrons
1
8
10
8
2
10
9
10
3
9
9
9
4
8
11
8
19. What two atoms have the same mass?
20. What two are isotopes of one another?
21. Write and label the parts of isotope notation.
22. What diagram above shows a wave with the longest wavelength?
23. What is the amount of energy carried by a photon that has a frequency of 3.76 x 1014 Hz?
24. What is the wavelength of the above photon?
For the figure on the right,
25. What region contains elements with two valence electrons?
26. What region contains elements with an electron configuration that ends with p3?
27. What is the halogen that is in Period 5?
Honors/Magnet Chemistry
Fall Semester Material
Midterm Study Guide
28. Based on the periodic table shown, elements from columns A and C will combine in what ratio?
29. Based on the periodic table shown, elements from columns B and E will combine in what ratio?
30. What is the correct formula for the ionic compound that results from these two atoms?
31. What is the correct formula for the compound formed between beryllium and nitrogen?
32. What is the correct name for the compound FeS?
33. What is the correct name for the compound CoCO3?
34. What is the correct name for the compound N2O4?
35. What is the correct name for the compound NaNO2?
36. What is the correct formula for calcium phosphate?
39. How many total atoms are in 3Na2SO4?
A student conducts an experiment to determine the effect of adding salt on the boiling temperature of water. The
results are shown below.
Sample
Amount of Salt
Boiling Temperature
Sample 1
0g
100.0° C
Sample 2
2g
102.3° C
Sample 3
5g
104.8° C
Sample 4
10 g
107.5° C
40.What is the independent variable in this experiment?
41.What is the dependent variable in this experiment?
42.What is a value that should remain constant for all samples in this experiment?
43.What is the control in this experiment?
44.What is a reasonable hypothesis for this experiment?
45.What kind of graph would be best to use with these data?
M&M’s™ in a bag
Color
Orange
Brown
Yellow
Green
Blue
Red
Percent
20
13
14
16
24
13
46. Give an example of an extensive property and an intensive property.
47. Give definitions and examples of each of the types of matter (mixtures, compounds, etc).
48. Describe the difference between chemical and physical properties. Give an example of each.
49.The box for an element from the periodic table is shown on the right. What is the atomic
mass?
50. List the atomic theories. Know who made it and what it looks like.
Honors/Magnet Chemistry
Atom
Sodium
Chlorine
Protons
Fall Semester Material
Atoms
Neutrons
12
17
Electrons
17
Midterm Study Guide
Mass Number
23
35
51. How many neutrons are in an atom of chlorine?
52. How many electrons are in a neutral atom of sodium?
53. Label the parts of the wave.
54. What type of wave has a frequency of approximately 108 hertz? What type of wave has the highest frequency?
Lowest?
55. Draw the orbitals s, p, and d.
56. Know the valence electrons of all groups and transition metals. Know the charges of all main group elements.
57. Draw the Lewis dot structures of silicon, magnesium, and fluorine.
58. A photon is emitted from an atom with an energy of 4.25 x 10-19 J. What is the wavelength of the photon?
59. Give definitions and state the trend as you go across the periodic table and down the periodic table for:
a) electronegativity
b) ionization energy
c) atomic radius
d) electron affinity
60. Using the figure above, what element has an electron configuration that ends in the fourth energy level (A,B,C, or
D)?
61. What element is the most metallic (A,B,C, or D)?
Honors/Magnet Chemistry
Fall Semester Material
62. In What pair is the one on the left larger than the one on the right?
a. Na, Rb
c. Br, Brb. S, Mg
d. K, K+
63. What ion is this atom most likely to form?
64. In the formation of magnesium sulfide, which atom gains electrons? Which loses?
65. What is the correct formula for the compound manganese (III) fluoride?
66. List the diatomic elements.
67.What is the formula for the compound sulfur hexachloride?
68. What is the correct name for the compound KClO3?
69. Find the molar mass of each compound:
a. Potassium iodide
b. Calcium phosphate
c. Dinitrogen pentoxide
d. Carbon monoxide
e. Iron (III) hydroxide
f. Manganese (IV) oxide
70. Write the full electron configurations for:
g. Manganese
h. Chlorine
i. Yttrium
j. Tungsten
71. Draw the orbital notation for the following:
k. Carbon
l. Sulfur
m. Scandium
n. Magnesium
72. Convert the following to moles:
a) 382 grams of water
b) 4.7 L of oxygen gas
c) 4.5 x 1012 molecules of carbon tetrafluoride
73. Convert the following:
a) 8.9 L of hydrogen gas to grams
b) 1.2x 1029 atoms of aluminum metal to grams
c) 0.05 grams of sodium chloride to formula units
Midterm Study Guide