Question 1

What is the ground state electron configuration of iron?

Accepted Answer

A) [Ar] 3d8 
B) [Ar] 4s23d6 
C) [Ne] 3d104s2 
D) [Ar] 4s13d8 
E) none of the above is correct 
A) [Ar] 3d8 
B) [Ar] 4s23d6 
C) [Ne] 3d104s2 
D) [Ar] 4s13d8 
E) none of the above is correct B

Question 2

How many orbitals are in the 5d sublevel?

Accepted Answer

A) 1 
B) 3 
C) 5 
D) 7 
E) 9 
A) 1 
B) 3 
C) 5 
D) 7 
E) 9 C

Question 3

Identify the statement among the following that combines a correct cause with a correct effect of that cause.

Accepted Answer

A) Sulfur atoms are smaller than phosphorus atoms because sulfur has a smaller atomic number 
B) The radius of calcium atoms is greater than the radius of magnesium atoms because ground state electrons occupy a higher energy level in calcium than in magnesium 
C) Atomic size increases from left to right in a row of the periodic table because density increases in the same direction 
D) The relative sizes of silicon atoms and aluminum atoms are not predictable on the basis of nuclear charge and highest occupied energy level because one factor predicts silicon atoms to be larger,and the other factor predicts aluminum atoms to be larger 
E) More than one of the above statements combines a correct cause with a correct effect of that cause 
A) Sulfur atoms are smaller than phosphorus atoms because sulfur has a smaller atomic number 
B) The radius of calcium atoms is greater than the radius of magnesium atoms because ground state electrons occupy a higher energy level in calcium than in magnesium 
C) Atomic size increases from left to right in a row of the periodic table because density increases in the same direction 
D) The relative sizes of silicon atoms and aluminum atoms are not predictable on the basis of nuclear charge and highest occupied energy level because one factor predicts silicon atoms to be larger,and the other factor predicts aluminum atoms to be larger 
E) More than one of the above statements combines a correct cause with a correct effect of that cause B

Question 4

Which of the following statements about atomic spectra is/are correct?
(i)The discrete line spectrum of elements is evidence that electron energies are quantized
(ii)Lines in the spectrum are discrete because electron energies are restricted to certain values
(iii)Energy is emitted from atoms as electrons move from higher energy levels to lower energy levels
(iv)Electron transitions of differing energies produce different wavelengths of light.

Accepted Answer

A) i and ii 
B) i and iii 
C) ii and iv 
D) i,iii,and iv 
E) All are correct statements. 
A) i and ii 
B) i and iii 
C) ii and iv 
D) i,iii,and iv 
E) All are correct statements.

Question 5

Which of the following statements is/are correct?
(i)Wavelength is the distance between identical parts of a wave
(ii)Frequency is the number of complete waves passing a point in a given period of time
(iii)The speed of light is equal to the product of the wavelength and frequency of an electromagnetic wave

Accepted Answer

A) i only 
B) iii only 
C) i and ii 
D) ii and iii 
E) i,ii,and iii 
A) i only 
B) iii only 
C) i and ii 
D) ii and iii 
E) i,ii,and iii

Question 6

Which of the following is the best definition of first ionization energy?

Accepted Answer

A) The energy required to remove one electron from a neutral gaseous atom of an element 
B) The energy barrier that must be overcome to start a chemical reaction 
C) The energy required to raise an electron in the ground state into the first excited state 
D) The energy defined by   mv2 
E) The energy needed to reduce a species in the aqueous phase to its minimum (first)reduction potential 
A) The energy required to remove one electron from a neutral gaseous atom of an element 
B) The energy barrier that must be overcome to start a chemical reaction 
C) The energy required to raise an electron in the ground state into the first excited state 
D) The energy defined by   mv2 
E) The energy needed to reduce a species in the aqueous phase to its minimum (first)reduction potential

Question 7

In the third principal energy level,what is the order of energies of the sublevels,from lowest to highest?

Accepted Answer

A) 1s < 2s < 3s 
B) 3d < 3p < 3s 
C) 3p < 3s < 3d 
D) 3p < 3d < 3s 
E) 3s < 3p < 3d 
A) 1s < 2s < 3s 
B) 3d < 3p < 3s 
C) 3p < 3s < 3d 
D) 3p < 3d < 3s 
E) 3s < 3p < 3d

Question 8

Which of the following is the letter representation of the electron orbital below?

Accepted Answer

A) s 
B) pz 
C) px 
D) dxz 
E) dz2 
A) s 
B) pz 
C) px 
D) dxz 
E) dz2

Question 9

Atomic size varies with position in the periodic table primarily because of what influence(s)?
(i)Highest occupied principal energy level
(ii)Increasing number of electrons with increasing atomic number
(iii)Nuclear charge

Accepted Answer

A) i only 
B) ii only 
C) iii only 
D) i and iii 
E) i,ii,and iii 
A) i only 
B) ii only 
C) iii only 
D) i and iii 
E) i,ii,and iii

Question 10

Which of the following is not a property of metals?

Accepted Answer

A) Tend to gain electrons to form anions 
B) 1,2,or 3 valence electrons 
C) Low ionization energies 
D) High electrical conductivity 
E) Malleable and ductile 
A) Tend to gain electrons to form anions 
B) 1,2,or 3 valence electrons 
C) Low ionization energies 
D) High electrical conductivity 
E) Malleable and ductile

Question 11

Which general electron configuration is responsible for the family properties of noble gases?

Accepted Answer

A) ns1 
B) ns2 
C) ns2np4 
D) ns2np5 
E) ns2np6 
A) ns1 
B) ns2 
C) ns2np4 
D) ns2np5 
E) ns2np6

Question 12

The Bohr model of the atom assumes that which of the following quantities for the electron in a hydrogen atom is/are quantized?
(i)Speed
(ii)Direction of spin axis
(iii)Energy
(iv)Radius of its orbit

Accepted Answer

A) iii only 
B) i and iii 
C) iii and iv 
D) i,iii,and iv 
E) i,ii,and iii 
A) iii only 
B) i and iii 
C) iii and iv 
D) i,iii,and iv 
E) i,ii,and iii

Question 13

Which of the following is/are the major flaw(s)of the Bohr model of the hydrogen atom?
(i)Hydrogen is the only atom that fits the model
(ii)Circular orbits violate the Law of Conservation of Energy
(iii)It explains atomic line spectra in terms of electron energies
(iv)It introduced the idea of quantized electron energy levels in an atom

Accepted Answer

A) ii only 
B) i and ii 
C) i and iii 
D) iii and iv 
E) i,ii,and iii 
A) ii only 
B) i and ii 
C) i and iii 
D) iii and iv 
E) i,ii,and iii

Question 14

Complete the statement with the best choice: Excited states for the hydrogen atom are states in which...

Accepted Answer

A) electrons are found after they have released energy 
B) electrons are more stable than in the ground state 
C) the electron has more energy than in the ground state 
D) electrons orbit in opposite directions as in the ground state 
E) electrons orbit closer to the nucleus than in the ground state 
A) electrons are found after they have released energy 
B) electrons are more stable than in the ground state 
C) the electron has more energy than in the ground state 
D) electrons orbit in opposite directions as in the ground state 
E) electrons orbit closer to the nucleus than in the ground state

Question 15

Which of the following defines a correct relationship for electromagnetic radiation?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 16

The order of increasing principal energy levels in an atom is related to which of the following sequences?

Accepted Answer

A) 1-2-3-4 
B) 1-3-5-7 
C) 4-3-2-1 
D) s-p-d-f 
E) f-d-p-s 
A) 1-2-3-4 
B) 1-3-5-7 
C) 4-3-2-1 
D) s-p-d-f 
E) f-d-p-s

Question 17

Consider the following periodic table.   Which numbered section represents the most metallic elements?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5 
A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Question 18

Which of the following lists electron sublevels in order of increasing energy?

Accepted Answer

A) 4p < 4d < 5s < 5p < 6s 
B) 4p < 5s < 4d < 5p < 6s 
C) 6s < 5p < 5s < 4d < 4p 
D) 6s < 5p < 4d < 5s < 4p 
E) 4p = 4d < 5s = 5p < 6s 
A) 4p < 4d < 5s < 5p < 6s 
B) 4p < 5s < 4d < 5p < 6s 
C) 6s < 5p < 5s < 4d < 4p 
D) 6s < 5p < 4d < 5s < 4p 
E) 4p = 4d < 5s = 5p < 6s

Question 19

At any instant an electron orbital may be in which occupancy state?
(i)Unoccupied
(ii)Occupied by one electron
(iii)Occupied by two electrons
(iv)Occupied by 2,6,10,or 14 electrons

Accepted Answer

A) iv only 
B) i or iv 
C) ii or iv 
D) i,ii,or iii 
E) i,ii,or iv 
A) iv only 
B) i or iv 
C) ii or iv 
D) i,ii,or iii 
E) i,ii,or iv

Question 20

Consider the following periodic table.   Which section represents elements whose electron configuration for the highest occupied energy level is ns2np5.

Accepted Answer

A) alkali metals 
B) alkaline earth metals 
C) transition metals 
D) halogens 
E) noble gases 
A) alkali metals 
B) alkaline earth metals 
C) transition metals 
D) halogens 
E) noble gases

What is the ground state electron configuration of iron?

How many orbitals are in the 5d sublevel?

Identify the statement among the following that combines a correct cause with a correct effect of that cause.

Which of the following is the best definition of first ionization energy?

In the third principal energy level,what is the order of energies of the sublevels,from lowest to highest?

Which of the following is the letter representation of the electron orbital below?

Atomic size varies with position in the periodic table primarily because of what influence(s)? (i)Highest occupied principal energy level (ii)Increasing number of electrons with increasing atomic number (iii)Nuclear charge

Which of the following is not a property of metals?

Which general electron configuration is responsible for the family properties of noble gases?

The Bohr model of the atom assumes that which of the following quantities for the electron in a hydrogen atom is/are quantized? (i)Speed (ii)Direction of spin axis (iii)Energy (iv)Radius of its orbit

Complete the statement with the best choice: Excited states for the hydrogen atom are states in which...

Which of the following defines a correct relationship for electromagnetic radiation?

The order of increasing principal energy levels in an atom is related to which of the following sequences?

Consider the following periodic table. Which numbered section represents the most metallic elements?

Which of the following lists electron sublevels in order of increasing energy?

At any instant an electron orbital may be in which occupancy state? (i)Unoccupied (ii)Occupied by one electron (iii)Occupied by two electrons (iv)Occupied by 2,6,10,or 14 electrons

Consider the following periodic table. Which section represents elements whose electron configuration for the highest occupied energy level is ns²np⁵.

Matter and Energy

Measurement and Chemical Calculations

Introduction to Gases

Atomic Theory: the Nuclear Model of the Atom

Chemical Nomenclature

Chemical Formula Relationships

Chemical Reactions

Chemical Change

Quantity Relationships in Chemical Reactions

Chemical Bonding

Structure and Shape

The Ideal Gas Law and Its Applications

Gases, liquids, and Solids

Solutions

Acid-Base Proton-Transferreactions

Chemical Equilibrium

Oxidation-Reduction Redoxreactions

Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Exam 11: Atomic Theory: the Quantum Model of the Atom

What is the ground state electron configuration of iron?

How many orbitals are in the 5d sublevel?

Identify the statement among the following that combines a correct cause with a correct effect of that cause.

Which of the following is the best definition of first ionization energy?

In the third principal energy level,what is the order of energies of the sublevels,from lowest to highest?

Which of the following is the letter representation of the electron orbital below?

Atomic size varies with position in the periodic table primarily because of what influence(s)? (i)Highest occupied principal energy level (ii)Increasing number of electrons with increasing atomic number (iii)Nuclear charge

Which of the following is not a property of metals?

Which general electron configuration is responsible for the family properties of noble gases?

The Bohr model of the atom assumes that which of the following quantities for the electron in a hydrogen atom is/are quantized? (i)Speed (ii)Direction of spin axis (iii)Energy (iv)Radius of its orbit

Complete the statement with the best choice: Excited states for the hydrogen atom are states in which...

Which of the following defines a correct relationship for electromagnetic radiation?

The order of increasing principal energy levels in an atom is related to which of the following sequences?

Consider the following periodic table. Which numbered section represents the most metallic elements?

Which of the following lists electron sublevels in order of increasing energy?

At any instant an electron orbital may be in which occupancy state? (i)Unoccupied (ii)Occupied by one electron (iii)Occupied by two electrons (iv)Occupied by 2,6,10,or 14 electrons

Consider the following periodic table. Which section represents elements whose electron configuration for the highest occupied energy level is ns2np5.

Matter and Energy

Measurement and Chemical Calculations

Introduction to Gases

Atomic Theory: the Nuclear Model of the Atom

Chemical Nomenclature

Chemical Formula Relationships

Chemical Reactions

Chemical Change

Quantity Relationships in Chemical Reactions

Chemical Bonding

Structure and Shape

The Ideal Gas Law and Its Applications

Gases, liquids, and Solids

Solutions

Acid-Base Proton-Transferreactions

Chemical Equilibrium

Oxidation-Reduction Redoxreactions

Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Consider the following periodic table. Which section represents elements whose electron configuration for the highest occupied energy level is ns²np⁵.