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# Periodic Table - Review (Grades 11-12)

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## Periodic Table - Review

Instructions: Please answer the following questions, based on your knowledge of the Periodic Table. This test includes multiple-choice questions, true/false questions, free-response questions, and fill-in-the-blank questions.

1.
Mendeleev arranged the elements in his Periodic Table in order of
1. increasing atomic mass
2. increasing number of electrons
3. increasing atomic number
4. increased number of neutrons
2.
The Periodic Law is
1. a theory
2. a number
3. a law stating that all properties of an element result from arrangements of elements based on atomic number
4. an element on the Periodic Table
3.
Which term refers to the number of protons in an atom and helps to place elements on the Periodic Table?
1. atomic number
2. atomic mass
3. mass number
4. isotope
4.
What is the atomic number for Polonium?
1. 56
2. 12
3. 89
4. 84
5.
What is the element symbol for Copper?
1. Zn
2. Au
3. Ag
4. Cu
6.
Which of the following element-chemical symbol pairs is matched incorrectly?
1. Sodium - So
2. Iron - Fe
3. Aluminum - Al
4. Helium - He
7.
Which of the following statements about periods is true?
1. Periods are in vertical groups
2. Periods indicate the number of energy levels
3. Periods indicate chemical properties of elements
4. There are 18 periods
8.
Which of the following elements are in the same period?
1. Kr, Zn, Ag, Cl
2. Be, C, N, O
3. Na, Mg, Al, Ne
4. He, Ne, Ar, Kr
9.
Which of the following elements are in the same group?
1. He, Ne, Cl, Br
2. Co, Ni, Cu, Zn
3. K, Zr, Rb, O
4. H, Li, Na, K
10.
Which element is in Period 5, Group 2?
1. Sr
2. Ca
3. Rb
4. Cs
11.
Which feature determines the chemical properties of an element?
1. the group number
2. the period number
3. the number of valence electrons
4. the atomic number
12.
This element is in Period 2 of the Periodic Table and has four dots in its Lewis electron-dot diagram.
1. neon
2. oxygen
3. beryllium
4. carbon
13.
Which of the following lists contains elements with seven electrons in their outermost energy levels?
1. He, Ne, and Ar
2. Cr, Mn, and Fe
3. Br, I, and Cl
4. O, S, and Se
14.
Which pair of elements would you expect to have similar properties?
1. At and F
2. F and O
3. Ge and As
4. Li and Fe
15.
To which group does the following element belong to?
1. 13
2. 3
3. 5
4. 8
16.
Nitrogen is located in Group 15 of the Periodic Table. How many electrons does a nitrogen atom need to become stable?
1. 5
2. 2
3. 7
4. 3
17.
A strontium atom has                 valence electrons and                 energy levels
1. 5, 2
2. 2, 5
3. 38, 88
4. 88, 38
18.
Which of the following statements is true about the Periodic Table?
1. Most elements are nonmetals
2. Most elements are gas
3. Most elements are metals
4. Most elements are liquids
19.
Most of the elements in Groups 13-18 are classified as
1. alkali metals
2. inner transition metals
3. nonmetals
4. alkaline earth metals
20.
Which of these elements is the best conductor of electricity?
1. Br
2. Ni
3. S
4. N
21.
Elements that are generally not lustrous and that are generally poor conductors of electricity are...
1. metals
2. metalloids
3. nonmetals
4. halogens
22.
Which element is malleable and ductile?
1. fluorine
2. gallium
3. silicon
4. phosphorus
23.
Which element contains properties of both metals and nonmetals?
1. Si
2. Ne
3. Al
4. O
24.
Which element is liquid and a strong conductor of heat and electricity at room temperature?
1. mercury
2. sodium
3. nickel
4. lithium
25.
What is Group 16 of the Periodic Table called?
1. The Halogen Family
2. The Oxygen Family
3. The Nitrogen Family
26.
Which of the following categories of elements are placed separately as two series at the bottom of the Periodic Table?
1. Lanthanides and Actinides
2. Alkali metals
3. Halogens
4. Alkaline earth metals
27.
Which of the following properties correctly describes an alkaline earth metal?
1. It does not react with air
2. It reacts violently with water
3. It is found in nature as an atom
4. It has a high electronegativity value
28.
Which of the following statements is true about halogens?
1. They have low electronegativity values, compared to nonmetals
2. They are all liquids at STP
3. They react only with Group 1 metals
4. They are very reactive nonmetals
29.
Elements in a group of the Periodic Table are described below:
• Soft silvery-white color
• Good conductor of thermal energy
• Good conductor of electricity
• Atoms contain a single valence electron
• Contains elements that are among the most reactive in water

Which group is described?
1. Alkali Metals
2. Alkaline Earth Metals
3. Halogens
4. Noble Gases
30.
Which of these are noble gases?
1. He, F, Kr, Ar
2. Ar, Br, Xe, Rn
3. Br, F, Ca, He
4. He, Ar, Ne, Xe
31.
Noble gases are unreactive because they have a full shell of                      .
1. inner-level electrons
2. protons
3. valence electrons
4. neutrons
32.
Which elements are the least reactive?
1. A
2. D
3. I
4. J
33.
Which of the following elements DOES NOT obey the octet rule?
2. xenon
3. argon
4. helium
34.
Which of the following qualities is not typical of metals?
1. They are malleable.
2. They form ionic compounds with non-metals.
3. They conduct electricity.
4. They form negative ions.
35.
A nitrogen atom can achieve an octet by                        .
1. gaining four electrons
2. gaining three electrons
3. losing one electron
4. losing three electrons
36.
When sulfur becomes an ion, which noble gas' electron configuration does it match up with?
1. argon
2. helium
3. neon
4. xenon
37.
Element X combines with oxygen to form a compound with the formula XO. Element X is in the same group as which element?
1. Al
2. B
3. Ca
4. Zn
38.
How many atoms of iodine are needed to react with one atom of magnesium?
1. 2
2. 3
3. 4
4. 1
39.
What happens to the number of valence electrons going across Period 2 in order of increasing atomic number?
1. The number of valence electrons increases and decreases across the period.
2. The number of valence electrons increases.
3. The number of valence electrons decreases.
4. The number of valence electrons remains the same.
40.
Which of the following will decrease as you move left to right across a period of the Periodic Table?
1. electron affinity
3. electronegativity
4. atomic number
41.
Which ion of nitrogen is the largest?
1. $N^{5+}$
2. $N^{3-}$
3. $N^{2-}$
4. $N^{3+}$
5. N
42.
Which of the following is the largest in size?
1. $Cl^-$
2. $S^(2-)$
3. $Na^+$
4. $F^-$
43.
Which of the following halogens has the weakest attraction for electrons?
1. Cl
2. Br
3. F
4. I
44.
Which of these statements is an accurate description of the ionization energies of elements in the periodic table?
1. The ionization energy of lithium is greater than that of potassium.
2. The ionization energy of iodine is greater than that of fluorine
3. The ionization energy of magnesium is greater than that of sulfur
4. The ionization energy of krypton is greater than that of neon
45.
Which element is dull and brittle, with a high electronegativity value?
1. hydrogen
2. silver
3. strontium
4. sulfur
46.
The elements iron, cobalt and nickel are known as the iron triad. A special characteristic of these three elements is that they
1. are often used in making coins.
2. will not form compounds.
3. can be magnetized.
4. only have one neutron.
47.
If the valence shell electronic structure is $ns^2 np^5$, the element will belong to the group of
1. alkali metals
2. halogens
3. alkaline earth metals
4. actinoids
48.
Actinides belong to the following type of elements
1. s-block elements
2. d-block elements
3. f-block elements
4. p-block elements
49.
Nonmetals react with                    to create                                    . They are always liquids or gases and react with water to create                 .
50.
Explain why calcium and magnesium bond in a similar way.

51.
Name one property that results from magnesium having 2 valence electrons.

52.
All the elements in Group 14, the carbon group, are classified as metalloids.
1. True
2. False
53.
Hydrogen is an alkali metal.
1. True
2. False
54.
Strontium, Barium, and Radium are all Alkaline Earth Metals.
1. True
2. False
55.
Bromine and Chlorine are found in the same group in the Periodic Table.
A. Name this group.
B. Indicate if they are metals or nonmetals.
c. Name any property that these two elements would be expected to share.

56.
Atoms become stable by reacting to achieve the valence electron structure of a                         .
57.
Explain why argon and neon generally do not form compounds with other elements.

58.
What are the homonuclear diatomic elements?

59.
In your own words, define allotropes and provide an example.

60.
Name two important properties of transition metals.

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