Question 1

The magnetic quantum number is related to the orientation of the orbital in space relative to the other orbitals in the atom.

Accepted Answer

A) True 
 B)False

Question 2

How many unpaired electrons are there in an atom of sulfur in its ground state?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3 
E) 4 
A) 0 
B) 1 
C) 2 
D) 3 
E) 4

Question 3

Which of the following statements is false?

Accepted Answer

A) A sodium atom has a smaller radius than a potassium atom. 
B) A neon atom has a smaller radius than an oxygen atom. 
C) A fluorine atom has a smaller first ionization energy than an oxygen atom. 
D) A cesium atom has a smaller first ionization energy than a lithium atom. 
E) All are true. 
A) A sodium atom has a smaller radius than a potassium atom. 
B) A neon atom has a smaller radius than an oxygen atom. 
C) A fluorine atom has a smaller first ionization energy than an oxygen atom. 
D) A cesium atom has a smaller first ionization energy than a lithium atom. 
E) All are true.

Question 4

When a strontium salt is ignited,it burns with a red flame.The frequency of the light given off by this flame is greater than

Accepted Answer

A) yellow light 
B) infrared light 
C) ultraviolet light 
D) radio waves 
E) x-rays 
A) yellow light 
B) infrared light 
C) ultraviolet light 
D) radio waves 
E) x-rays

Question 5

If l = 3,how many electrons can be contained in all the possible orbitals?

Accepted Answer

A) 7 
B) 6 
C) 14 
D) 10 
E) 5 
A) 7 
B) 6 
C) 14 
D) 10 
E) 5

Question 6

The number of unpaired electrons in the outer subshell of a Cl atom is

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3 
E) none of these 
A) 0 
B) 1 
C) 2 
D) 3 
E) none of these

Question 7

Which of the following atoms has the largest ionization energy?

Accepted Answer

A) O 
B) Li 
C) Ne 
D) Be 
E) K 
A) O 
B) Li 
C) Ne 
D) Be 
E) K

Question 8

A point in the wave function where the amplitude is zero defines

Accepted Answer

A) the node 
B) the excited state 
C) the amplitude of the wave function 
D) the frequency of radiation 
E) none of the above 
A) the node 
B) the excited state 
C) the amplitude of the wave function 
D) the frequency of radiation 
E) none of the above

Question 9

Consider the ionization energy (IE)of the magnesium atom.Which of the following is not true?

Accepted Answer

A) The IE of Mg is lower than that of sodium. 
B) The IE of Mg is lower than that of neon. 
C) The IE of Mg is lower than that of beryllium. 
D) The IE of Mg is higher than that of calcium. 
E) The IE of Mg is lower than that of Mg+. 
A) The IE of Mg is lower than that of sodium. 
B) The IE of Mg is lower than that of neon. 
C) The IE of Mg is lower than that of beryllium. 
D) The IE of Mg is higher than that of calcium. 
E) The IE of Mg is lower than that of Mg+.

Question 10

Which of the following combinations of quantum numbers is not allowed?

Accepted Answer

A) n = 1,l = 1,ml = 0,ms =   
B) n = 3,l = 0,ml = 0,ms = -   
C) n = 2,l = 1,ml = -1,ms =   
D) n = 4,l = 3,ml = -2,ms = -   
E) n = 4,l = 2,ml = 0,ms =   
A) n = 1,l = 1,ml = 0,ms =   
B) n = 3,l = 0,ml = 0,ms = -   
C) n = 2,l = 1,ml = -1,ms =   
D) n = 4,l = 3,ml = -2,ms = -   
E) n = 4,l = 2,ml = 0,ms =

Question 11

An element E has the electron configuration [Kr] 5s24d105p2.The formula for the fluoride of E is most likely

Accepted Answer

A) EF14 
B) EF4 
C) EF 
D) EF6 
E) EF8 
A) EF14 
B) EF4 
C) EF 
D) EF6 
E) EF8

Question 12

The __________ electrons are in the outermost principal quantum level of an atom.

Accepted Answer

The answer of The __________ electrons are in the outermost...

Question 13

How many electrons in an atom can have the quantum numbers n = 4,l = 2?

Accepted Answer

A) 14 
B) 12 
C) 5 
D) 10 
E) 6 
A) 14 
B) 12 
C) 5 
D) 10 
E) 6

Question 14

An element with the electron configuration [Xe] 6s24f145d7 would belong to which class on the periodic table?

Accepted Answer

A) transition elements 
B) alkaline earth elements 
C) halogens 
D) rare earth elements 
E) none of the above 
A) transition elements 
B) alkaline earth elements 
C) halogens 
D) rare earth elements 
E) none of the above

Question 15

Which of the following statements is true about the ionization energy of Mg+?

Accepted Answer

A) It will be equal to the ionization energy of Li. 
B) It will be equal to and opposite in sign to the electron affinity of Mg. 
C) It will be equal to and opposite in sign to the electron affinity of Mg+. 
D) It will be equal to and opposite in sign to the electron affinity of Mg2+. 
E) None of the above. 
A) It will be equal to the ionization energy of Li. 
B) It will be equal to and opposite in sign to the electron affinity of Mg. 
C) It will be equal to and opposite in sign to the electron affinity of Mg+. 
D) It will be equal to and opposite in sign to the electron affinity of Mg2+. 
E) None of the above.

Question 16

The statement that the first ionization energy for an oxygen atom is lower than the first ionization energy for a nitrogen atom is

Accepted Answer

A) consistent with the general trend relating changes in ionization energy across a period from left to right,because it is easier to take an electron from an oxygen atom than from a nitrogen atom 
B) consistent with the general trend relating changes in ionization energy across a period from left to right,because it is harder to take an electron from an oxygen atom than from a nitrogen atom 
C) inconsistent with the general trend relating changes in ionization energy across a period from left to right,due to the fact that the oxygen atom has two doubly-occupied 2p orbitals and nitrogen has only one 
D) inconsistent with the general trend relating changes in ionization energy across a period from left to right,due to the fact that oxygen has one doubly-occupied 2p orbital and nitrogen does not 
E) incorrect 
A) consistent with the general trend relating changes in ionization energy across a period from left to right,because it is easier to take an electron from an oxygen atom than from a nitrogen atom 
B) consistent with the general trend relating changes in ionization energy across a period from left to right,because it is harder to take an electron from an oxygen atom than from a nitrogen atom 
C) inconsistent with the general trend relating changes in ionization energy across a period from left to right,due to the fact that the oxygen atom has two doubly-occupied 2p orbitals and nitrogen has only one 
D) inconsistent with the general trend relating changes in ionization energy across a period from left to right,due to the fact that oxygen has one doubly-occupied 2p orbital and nitrogen does not 
E) incorrect

Question 17

Which of the following exhibits the correct orders for both atomic radius and ionization energy,respectively? (smallest to largest)

Accepted Answer

A) S,O,F,and F,O,S 
B) F,S,O,and O,S,F 
C) S,F,O,and S,F,O 
D) F,O,S,and S,O,F 
E) none of these 
A) S,O,F,and F,O,S 
B) F,S,O,and O,S,F 
C) S,F,O,and S,F,O 
D) F,O,S,and S,O,F 
E) none of these

Question 18

The electron configuration for the carbon atom is:

Accepted Answer

A) 1s22s22p2 
B) [He]2s4 
C) [Ne]2s22p2 
D) 1s22p4 
E) none of these 
A) 1s22s22p2 
B) [He]2s4 
C) [Ne]2s22p2 
D) 1s22p4 
E) none of these

Question 19

Of the following elements,which has occupied d orbitals in its ground-state neutral atoms?

Accepted Answer

A) Ba 
B) Ca 
C) Si 
D) P 
E) Cl 
A) Ba 
B) Ca 
C) Si 
D) P 
E) Cl

Question 20

Sodium losing an electron is an ________ process and fluorine losing an electron is an _______ process.

Accepted Answer

A) endothermic,exothermic 
B) exothermic,endothermic 
C) endothermic,endothermic 
D) exothermic,exothermic 
E) more information needed 
A) endothermic,exothermic 
B) exothermic,endothermic 
C) endothermic,endothermic 
D) exothermic,exothermic 
E) more information needed

Exam 7: Atomic Structure and Periodicity

The magnetic quantum number is related to the orientation of the orbital in space relative to the other orbitals in the atom.

How many unpaired electrons are there in an atom of sulfur in its ground state?

Which of the following statements is false?

When a strontium salt is ignited,it burns with a red flame.The frequency of the light given off by this flame is greater than

If l = 3,how many electrons can be contained in all the possible orbitals?

The number of unpaired electrons in the outer subshell of a Cl atom is

Which of the following atoms has the largest ionization energy?

A point in the wave function where the amplitude is zero defines

Consider the ionization energy (IE)of the magnesium atom.Which of the following is not true?

Which of the following combinations of quantum numbers is not allowed?

An element E has the electron configuration [Kr] 5s24d105p2.The formula for the fluoride of E is most likely

The __________ electrons are in the outermost principal quantum level of an atom.

How many electrons in an atom can have the quantum numbers n = 4,l = 2?

An element with the electron configuration [Xe] 6s24f145d7 would belong to which class on the periodic table?

Which of the following statements is true about the ionization energy of Mg+?

The statement that the first ionization energy for an oxygen atom is lower than the first ionization energy for a nitrogen atom is

Which of the following exhibits the correct orders for both atomic radius and ionization energy,respectively? (smallest to largest)

The electron configuration for the carbon atom is:

Of the following elements,which has occupied d orbitals in its ground-state neutral atoms?

Sodium losing an electron is an ________ process and fluorine losing an electron is an _______ process.

Chemical Foundations

Atoms, molecules, and Ions

Stoichiometry

Chemical Reactions and Solutions Stoichiometry

Gases

Thermochemistry

Bonding: General Concepts

Covalent Bonding: Orbitals

Liquids and Solids

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria

Solubility and Complex Ion Equilibria

Spontaneity, entropy, and Free Energy

Electrochemistry

The Nucleus: a Chemists View

The Representative Elements

Transition Metals and Coordination Chemistry

Organic and Biological Molecules

Filters

An element E has the electron configuration [Kr] 5s²4d¹⁰5p².The formula for the fluoride of E is most likely

An element with the electron configuration [Xe] 6s²4f¹⁴5d⁷ would belong to which class on the periodic table?

Which of the following statements is true about the ionization energy of Mg⁺?

Sodium losing an electron is an __ process and fluorine losing an electron is an _ process.