Question 1

Element M reacts with oxygen to form an oxide with the formula MO.When MO is dissolved in water,the resulting solution is basic.Element M could be ________.

Accepted Answer

A)  strontium
B)  bromine
C)  selenium
D)  germanium
E)  nitrogenF) B) and E)
G) A) and B)

Question 2

Which one of the following has the smallest radius?

Accepted Answer

A)  Na
B)  Al
C)  K
D)  CaE) A) and D)
F) B) and D)

Question 3

Which isoelectronic series is correctly arranged in order of increasing radius?

Accepted Answer

A)  K+ 2+ -
B)   + 2+ - 
B)     + 2+ 
C)  Ca2+ + - 
D)  Ca2+ + - 
E)  Ca2+ + -  + 2+
C)  Ca2+ + -
D)  Ca2+ + -
E)  Ca2+ + - < ArF) A) and B)
G) A) and C)

Question 4

Most of the elements on the periodic table are ________.

Accepted Answer

A)  gases
B)  nonmetals
C)  metalloids
D)  liquids
E)  metalsF) A) and B)
G) B) and E) E

Question 5

________ is isoelectronic with krypton.

Accepted Answer

A)  Se2-
B)  Se3-
C)  Br
D)  Se2+
E)  Te2-F) All of the above
G) C) and E)

Question 6

When electrons are removed from a lithium atom,they are removed first from which orbital?

Accepted Answer

The answer of When electrons are removed from a lithium...

Question 7

Ca reacts with element X to form an ionic compound with the formula CaX.Al will react with X to form ________.

Accepted Answer

A)  AlX2
B)  AlX
C)  Al2X3
D)  Al3X2
E)  Al3XF) A) and C)
G) A) and E)

Question 8

Of the following elements,________ has the most negative electron affinity.

Accepted Answer

A)  O
B)  K
C)  B
D)  Na
E)  SF) A) and D)
G) B) and E)

Question 9

What is the coefficient of H2O when the following equation is completed and balanced?
Ca (s) + H2O (l) →

Accepted Answer

A)  1
B)  3
C)  2
D)  5
E)  Ca(s) does not react with H2O (l) .F) D) and E)
G) B) and E)

Question 10

The difference in metallic character is the smallest between ________.

Accepted Answer

A)  Li and O
B)  Rb and F
C)  Na and I
D)  Rb and Cl
E)  Na and MgF) A) and B)
G) All of the above

Question 11

Cl2 (g) + H2O (l) → ________

Accepted Answer

A)  HCl (aq) + HOCl (aq) 
B)  2Cl- (aq) + H2O (l) 
C)  2HCl (aq) + O2 (g) 
D)  2HCl (aq) + O2- (g) 
E)  Cl2 (aq) + H2O (l) F) A) and D)
G) All of the above

Question 12

What is the coefficient of Na when the following equation is completed and balanced?
Na (s) + H2O (l) →

Accepted Answer

A)  1
B)  3
C)  4
D)  2
E)  0F) C) and D)
G) B) and D)

Question 13

The charges for the ions formed from the alkali metals and the alkaline earth metals are ________ and ________,respectively.

Accepted Answer

1+,2+

Question 14

Which of the following metals differ in the number of d-electrons?

Accepted Answer

A)  Fe and Cu
B)  Mg and Fe
C)  Na and Rh
D)  Cs and Ca
E)  Ca and NaF) A) and B)
G) None of the above

Question 15

A group of ions all containing the same number of electrons constitutes an isoelectronic series.

Accepted Answer

A) True 
 B)False

Question 16

Which one of the following atoms has the largest radius?

Accepted Answer

A)  In
B)  Sn
C)  Sb
D)  Te
E)  IF) A) and B)
G) C) and D)

Question 17

Of the following,which gives the correct order for atomic radius for Mg,Na,P,Si and Ar?

Accepted Answer

A)  Mg > Na > P > Si > Ar
B)  Ar > Si > P > Na > Mg
C)  Si > P > Ar > Na > Mg
D)  Na > Mg > Si > P > Ar
E)  Ar > P > Si > Mg > NaF) A) and D)
G) A) and C)

Question 18

Which of the following has the most metallic character?

Accepted Answer

A)  Al
B)  Ca
C)  Mg
D)  Sr
E)  SiF) B) and D)
G) C) and D) D

Question 19

Which of the following correctly represents the third ionization of gallium?

Accepted Answer

A)  Ga (g) → Ga+ (g) + e-
B)  Ga+ (g) → Ga2+ (g) + e-
C)  Ga2- (g) + e- → Ga3- (g) 
D)  Ga2+ (g) → Ga3+ (g) + e-
E)  Ga+ (g) + e- → Ga2+ (g) F) A) and E)
G) A) and D)

Question 20

Of the following,which gives the correct order for atomic radius for Ca,K,As,Ge and Kr?

Accepted Answer

A)  Ca > K > As > Ge > Kr
B)  Kr > Ge > As > K > Ca
C)  Ge > As > Kr > K > Ca
D)  K > Ca > Ge > As > Kr
E)  Kr > As > Ge > Ca > KF) All of the above
G) A) and E)

Exam 7: Periodic Properties of the Elements

Element M reacts with oxygen to form an oxide with the formula MO.When MO is dissolved in water,the resulting solution is basic.Element M could be ________.

Correct AnswerverifiedShow Answer

Which one of the following has the smallest radius?

Correct AnswerverifiedShow Answer

Which isoelectronic series is correctly arranged in order of increasing radius?

Correct AnswerverifiedShow Answer

Most of the elements on the periodic table are ________.

Correct AnswerverifiedE

________ is isoelectronic with krypton.

Correct AnswerverifiedShow Answer

When electrons are removed from a lithium atom,they are removed first from which orbital?

Correct AnswerverifiedShow Answer

Ca reacts with element X to form an ionic compound with the formula CaX.Al will react with X to form ________.

Correct AnswerverifiedShow Answer

Of the following elements,________ has the most negative electron affinity.

Correct AnswerverifiedShow Answer

What is the coefficient of H2O when the following equation is completed and balanced? Ca (s) + H2O (l) →

Correct AnswerverifiedShow Answer

The difference in metallic character is the smallest between ________.

Correct AnswerverifiedShow Answer

Cl2 (g) + H2O (l) → ________

Correct AnswerverifiedShow Answer

What is the coefficient of Na when the following equation is completed and balanced? Na (s) + H2O (l) →

Correct AnswerverifiedShow Answer

The charges for the ions formed from the alkali metals and the alkaline earth metals are ________ and ________,respectively.

Correct Answerverified1+,2+

Which of the following metals differ in the number of d-electrons?

Correct AnswerverifiedShow Answer

A group of ions all containing the same number of electrons constitutes an isoelectronic series.

Correct AnswerverifiedShow Answer

Which one of the following atoms has the largest radius?

Correct AnswerverifiedShow Answer

Of the following,which gives the correct order for atomic radius for Mg,Na,P,Si and Ar?

Correct AnswerverifiedShow Answer

Which of the following has the most metallic character?

Correct AnswerverifiedD

Which of the following correctly represents the third ionization of gallium?

Correct AnswerverifiedShow Answer

Of the following,which gives the correct order for atomic radius for Ca,K,As,Ge and Kr?

Correct AnswerverifiedShow Answer

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E

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What is the coefficient of H₂O when the following equation is completed and balanced? Ca (s) + H₂O (l) →

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Cl₂ (g) + H₂O (l) → ________

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What is the coefficient of Na when the following equation is completed and balanced? Na (s) + H₂O (l) →

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The charges for the ions formed from the alkali metals and the alkaline earth metals are and ,respectively.

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1+,2+

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D

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