Question 1

The smallest ionization energies are found in the ____________ ___________ region of the periodic table.

Accepted Answer

A)   upper right
B)   upper left
C)   lower right
D)   lower left
E)   transition element (d-block) F) A) and B)
G) A) and C)

Question 2

The basic character of the binary oxides XmOn

Accepted Answer

A)   is greatest when X has a low atomic number.
B)   is greatest when X is a nonmetal.
C)   increases as the oxidation number of X increases.
D)   increases as the oxidation number of X decreases.
E)   is unaffected by the oxidation number of X.F) D) and E)
G) A) and E)

Question 3

The elements from Groups 1A(1)  and 2A(2)  are

Accepted Answer

A)   strong acids.
B)   strong bases.
C)   amphoteric.
D)   strong oxidizing agents.
E)   strong reducing agents.F) All of the above
G) A) and B)

Question 4

Predict the products for the reaction of the following set of reactants. CaO(s)  + H2O(l)  →

Accepted Answer

A)   Ca2+(aq)  + OH-(aq)  + H2(g) 
B)   Ca2+(aq)  + H2(g)  + O2(g) 
C)   Ca2+(aq)  + H3O+(aq) 
D)   Ca(OH) 2(s) 
E)   CaH2(s)  + O2(g) F) B) and E)
G) A) and E)

Question 5

Sodium hypochlorite is used

Accepted Answer

A)   in chemical analysis.
B)   as an oxidizer in rocket fuels.
C)   as a disinfectant.
D)   in the manufacture of steel.
E)   as a detergent.F) D) and E)
G) B) and C)

Question 6

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. The ionic radius for Na+ is 102 pm and for Cl- is 181 pm. In going from Na to Cl in Period 3, why does the atomic radius decrease while the ionic radius increases?

Accepted Answer

A)   The inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do.
B)   The inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion.
C)   The outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do.
D)   The outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do.
E)   Monatomic ions are bigger than the atoms from which they are formed.F) None of the above
G) A) and D)

Question 7

Predict the products for the reaction of the following set of reactants. (CH3) 3Ga(g)  + AsH3(g)  →

Accepted Answer

A)   (CH3) 3As(g)  + GaH3(g) 
B)   CH4(g)  + GaAs(s) 
C)   CH3CH3(g)  + GaAs(s) 
D)   CH4(g)  + H2GaAs(s) 
E)   CH3H(g)  + GaAs(s) F) A) and E)
G) A) and D)

Question 8

Ozone is both a pollutant and a natural component of the atmosphere.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following oxides will give the most basic solution when dissolved in water?

Accepted Answer

A)   SO2
B)   CO2
C)   K2O
D)   P4O10
E)   SO3F) B) and C)
G) A) and E)

Question 10

Certain Period 2 elements exhibit behaviors similar to Period 3 elements immediately below and to the right. One of these interesting diagonal relationships occurs between lithium and magnesium. Which of the following is one of their similarities?

Accepted Answer

A)   They both form insoluble carbonate salts.
B)   Both elements are important in treating manic-depression.
C)   Their first ionization energies are almost equal.
D)   Their densities are very similar.
E)   They both form organic compounds with polar covalent bonds from the metal to hydrocarbon group.F) C) and E)
G) B) and D)

Question 11

Predict the products for the following set of reactants. Bi(s)  + Cl2(g)  →

Accepted Answer

A)   BiCl
B)   BiCl2
C)   BiCl3
D)   BiCl4
E)   BiCl5F) None of the above
G) C) and D)

Question 12

Which of the following would you predict to have the greatest thermal stability?

Accepted Answer

A)   AsAt3
B)   AsI3
C)   AsBr3
D)   AsCl3
E)   AsF3F) A) and D)
G) All of the above

Question 13

Which one of the following elements is likely to exhibit the most violent and rapid reaction with water?

Accepted Answer

A)   Na
B)   Rb
C)   Mg
D)   Sr
E)   Cl2F) C) and D)
G) B) and E)

Question 14

Oxygen gas (O2) is paramagnetic, but ozone (O3) is diamagnetic.

Accepted Answer

A) True 
 B)False

Question 15

What are the products of the reaction of potassium hydride and water? KH(s)  + H2O(l)  →

Accepted Answer

A)   K(s)  + H2(g)  + OH-(aq) 
B)   K(s)  + H2(g)  + O2(g) 
C)   KOH(s)  + O2(g) 
D)   K+(aq)  + H2(g)  + O2(g) 
E)   K+(aq)  + H2(g)  + OH-(aq) F) A) and B)
G) C) and E)

Question 16

Certain Period 2 elements exhibit behaviors similar to Period 3 elements immediately below and to the right. One of the interesting diagonal relationships occurs between boron and silicon. Which of the following is one of their similarities?

Accepted Answer

A)   Both exhibit electrical properties of a conductor.
B)   The oxoanions of both elements occur in extended ionic networks.
C)   Both elements form compounds (boranes and silanes)  that are good oxidizing agents.
D)   Boric acid and silicic acid occur in layers with widespread hydrogen bonding.
E)   Both elements are unusually soft solids.F) A) and B)
G) A) and C)

Question 17

Ionic hydrides do not have exact (stoichiometric) formulas.

Accepted Answer

A) True 
 B)False

Question 18

The polymers containing silicon differ from polymers of carbon in which of the following ways?

Accepted Answer

A)   Silicon-based polymers are larger molecules than carbon-based polymers.
B)   Silicon-based polymers generally have a repeating silicon-oxygen link while carbon-based polymers can have carbon-carbon links.
C)   Silicon-based polymers generally have inorganic elements attached to the chain while carbon-based polymers generally have organic groups attached.
D)   Silicon-based polymers tend to be rigid while carbon-based polymers are generally flexible.
E)   Silicon forms stronger bonds than carbon.F) A) and E)
G) A) and D)

Question 19

Which of the following elements exists in allotropic forms?

Accepted Answer

A)   silicon
B)   germanium
C)   tin
D)   lead
E)   xenonF) A) and C)
G) B) and E)

Question 20

What are the products of the following reaction of strontium hydride and water? SrH2(s)  + H2O(l)  →

Accepted Answer

A)   Sr2+(aq)  + H2(g)  + O2(g) 
B)   Sr2+(aq)  + H2(g)  + OH-(aq) 
C)   Sr(s)  + H2(g)  + OH-(aq) 
D)   Sr(s)  + H3O+(aq) 
E)   None of these choices are correct.F) C) and D)
G) A) and B)

Exam 14: Periodic Patterns in the Main-Group Elements

Ionic hydrides do not have exact (stoichiometric) formulas.

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Which of the following elements exists in allotropic forms?

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Certain Period 2 elements exhibit behaviors similar to Period 3 elements immediately below and to the right. One of these interesting diagonal relationships occurs between lithium and magnesium. Which of the following is one of their similarities?

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Which one of the following elements is likely to exhibit the most violent and rapid reaction with water?

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Which of the following oxides will give the most basic solution when dissolved in water?

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Ozone is both a pollutant and a natural component of the atmosphere.

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The polymers containing silicon differ from polymers of carbon in which of the following ways?

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The atomic radius of sodium is 186 pm and of chlorine is 100 pm. The ionic radius for Na+ is 102 pm and for Cl- is 181 pm. In going from Na to Cl in Period 3, why does the atomic radius decrease while the ionic radius increases?

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Which of the following would you predict to have the greatest thermal stability?

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Predict the products for the following set of reactants. Bi(s) + Cl2(g) →

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Oxygen gas (O2) is paramagnetic, but ozone (O3) is diamagnetic.

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Sodium hypochlorite is used

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The smallest ionization energies are found in the ____________ ___________ region of the periodic table.

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What are the products of the reaction of potassium hydride and water? KH(s) + H2O(l) →

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Predict the products for the reaction of the following set of reactants. CaO(s) + H2O(l) →

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What are the products of the following reaction of strontium hydride and water? SrH2(s) + H2O(l) →

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The basic character of the binary oxides XmOn

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Certain Period 2 elements exhibit behaviors similar to Period 3 elements immediately below and to the right. One of the interesting diagonal relationships occurs between boron and silicon. Which of the following is one of their similarities?

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Predict the products for the reaction of the following set of reactants. (CH3) 3Ga(g) + AsH3(g) →

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The elements from Groups 1A(1) and 2A(2) are

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The atomic radius of sodium is 186 pm and of chlorine is 100 pm. The ionic radius for Na⁺ is 102 pm and for Cl^- is 181 pm. In going from Na to Cl in Period 3, why does the atomic radius decrease while the ionic radius increases?

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Predict the products for the following set of reactants. Bi(s) + Cl₂(g) →

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Oxygen gas (O₂) is paramagnetic, but ozone (O₃) is diamagnetic.

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The smallest ionization energies are found in the __ _ region of the periodic table.

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What are the products of the reaction of potassium hydride and water? KH(s) + H₂O(l) →

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Predict the products for the reaction of the following set of reactants. CaO(s) + H₂O(l) →

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What are the products of the following reaction of strontium hydride and water? SrH₂(s) + H₂O(l) →

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The basic character of the binary oxides X_mO_n

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Predict the products for the reaction of the following set of reactants. (CH₃) ₃Ga(g) + AsH₃(g) →

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