The Periodic Table and Trends
Review Questions and Problems
Name ___________________________________
Date _____________________ Period _________
Origin and Arrangement
1. The first periodic law and table was proposed by the Russian scientist _________________________.
2. How was the early periodic law different from the modern law?
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3. The horizontal rows in the periodic table are called __________________. The number of a period is
the same as the number of the ___________________ principle energy level containing electrons.
4. The vertical columns of the periodic table are called __________________ or ___________________.
5. Why do members of a group exhibit similar chemical properties?
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Metals
6. Where are the metals located on the periodic table? ______________________
7. What names are given to these groups of metals? Group 1 ________________ Group 2
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8. What groups contain the most reactive metals?
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9. What are some of the general physical and chemical properties of metals?
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Nonmetals
10. Where are the nonmetals found in the periodic table? ____________________
11. Which groups contain the most reactive nonmetals? _____________________
12. What is the name given to group 17? ____________________
13. What are some of the general physical and chemical properties of nonmetals?
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Other categories
14. What is a metalloid (semimetal)?
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15. List the seven metalloids:
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16. Where are the transition metals located on the table? _______________________________________
17. What characteristic of atomic structure distinguishes the transition elements from the representative
elements?
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18. Why are the elements in group 18 called inert?
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Part II: Using Elements 1-14 shown below, answer the following questions.
1
3
6
9
8
2
7
5
13
4
14
10
11
12
1. Element ______ is an alkaline earth metal.
8. Element ______ is a nonreactive gas.
2. Element ______ is in the oxygen family.
9.. Element ______ 4 valence electrons.
3. Element ______ is an alkali metal.
10. Element ______ is in the lanthanide series.
4. Element ______ is a metalloid.
11. Element ______ is a halogen.
5. Element ______ is a gas with 1 valence electron. 12. Element ______ is the only liquid metal.
6. Element ______ is in Period 5.
13. Element ______ is man-made.
7. Element ______ is the alkaline earth
metal with the smallest atomic radius.
14. Element ______ has the highest melting point,
and its abbreviated configuration is: [Xe]6s24f145d4
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Review Trends: Summarize the following trends across and down the Periodic Table atomic radius, (AR), ionization energy, (IE), electron affinity, (EA), and electronegativity, (EN)
Part III: Practice Problems
1. Circle the atom in each pair that has a larger radius.
a. Sn, Sr
b. Cl, I
c. Na, Rb
d. Mg, Be
e. S,P
f. Pa, U
g. B, Al
h. Au, Ba
i. Mg, Na
j. K, Ca
k. Al, B
l. Br, Cl
i. Fe, Fe3+
j. S2-, S
k. Se2-, Kr
l. Br-, Se2-
m. F, N
n. Ne, Ar
2. Circle the particle in each pair that has a larger radius.
a. Ca, Ca2+
b. F-, Cl-
c. As3-, P3d. Pb4+, Pb
e. Mg2+, Be2+ g. C, C4f. Te2+, Te
h. Ag, Ag+
3. Predict the oxidation number (charge after the atom gains or loses electrons) for these elements:
a. Al
b. N
c. Cl
d. Ca
e. Mg
f. S
g. Na
h. C
i. Ar
j. Be
k. K
l. Rn
4. How many electrons were gained or lost to produce the following ions?
a. K+
b. O2-
c. Ga3+
d. P3-
e. Sn4+
f. Br-
g. Ca2+
h. Sc3+
5. Circle the atom in each pair that has a lower first ionization energy.
a. N, O
b. Te, Sn
c. Ne, F
d. C, Ge
e. Br, I
f. Mg, Ca
g. I, Sb
h. Al, N
i. F, S
6. Circle the element would have the highest 1st ionization energy? Na, Mg, Al
Circle the element would have the highest 2nd ionization energy? K, Ca, Ga
Circle the element would have the highest 3rd ionization energy?
Be, B, C
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