Review Unit 2 Periodic Table
Unit 2: Periodic table (Chapter 4)
1. Mendeleev was the father of the modern periodic table
2. Describe the organization of the periodic table (metals, nonmetals, transition metals, metalloids)
3. Identify the location of families/groups of the periodic table and their defining characteristics
(alkali metals, alkaline earth, halogens, noble gases)
4. Determine the valence electrons and potential changes of ions for all elements on the periodic
table.
5. Define the periodic trends and rank elements based on them (ionization energy, atomic radius,
electronegativity)
6. Describe the creation of elements (natural and synthetic)
Questions:
1. Who is the father of the periodic table?
2. How did the father of the periodic table arrange the elements?
3. How did the father of the periodic table arrange for elements not yet discovered?
4. How did Mosely contribute to the periodic table?
5. What does a family of elements mean?
6. What is the accepted theory of the beginning of the universe? Explain what it means.
7. Arrange the following elements in order of decreasing ionization energy:
a. Cs, Li, K
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b. Cl, Si, P, Ar
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c. Ca, Ba, Be, Sr
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8. Tell which element in each of the following pairs has the higher electronegativity.
a. Na, Mg
_________________
b. Rb, I
_________________
c. Cl, Br
_________________
9. Why does atomic size generally increase as you move down a group of the periodic table and
decrease as you moved from left to right across a period?
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10. Electronegativity increases as you go toward which element?
11. What is ionization energy?
12. The elements on the right side of the periodic table tend to be positive / negative.
13. For the following pairs of atoms, tell which one of each pair has the largest atomic radius.
a.
b.
c.
d.
e.
Al, B
S, O
Br, Cl
Na, Al
O, F
_________________
_________________
_________________
_________________
_________________
14. Using the blank periodic table below label the following:
a. metals, nonmetals, transition metals, metalloid
b. label group numbers above families
c. alkali metals, alkaline earth, halogens, noble gases
d. ionization energy, atomic radius, electronegativity
Conversion Factors:
Mass
454 grams = 1 pound
1 ounce = 28.35 grams
1 pound = 16 ounces
1 ton = 2000 pounds
1 pound = 2.2 kg
Length
Volume
1 inch = 2.54 cm
1 cm3 = 1 milliliter
12 inches = 1 foot
1 quart = 0.946 liters
5280 feet = 1 mile
1 gallon = 4 quarts
1 mile = 1.609 kilometers
1 quart = 2 pints
1000 meters = 1 kilometer
3 feet = 1 yard
15. Convert 1.6 lb to grams.
16. Convert 2.94 pts to liters.
17. Convert 12 mm to centimeters.
Answers
7.
8.
10.
12.
13.
14.
a. Li, K, Cs
b. Ar, Cl, P, Si
a. Mg
b. I
a. Al b. S c. Br d. Na e. O
726 grams (sig fig: 730 g)
1.39 liters
1.2 cm
c. Be, Ca, Sr, Ba
c. Cl