Question 1

For which of the following transitions would a hydrogen atom absorb a photon with the longest wavelength?

Accepted Answer

A)  n = 1 to n = 2 
B)  n = 4 to n = 6 
C)  n = 5 to n = 4 
D)  n = 7 to n = 6 
E)  n = 6 to n = 7 
A)  n = 1 to n = 2 
B)  n = 4 to n = 6 
C)  n = 5 to n = 4 
D)  n = 7 to n = 6 
E)  n = 6 to n = 7 E

Question 2

For a proton (mass = 1.673 $\times$ 10-27 kg)moving with a velocity of 2.83 $\times$ 104 m/s,what is the de Broglie wavelength (in pm)?

Accepted Answer

A)  0.356 pm 
B)  3.56 pm 
C)  14.0 pm 
D)  7.15 pm 
E)  28.5 pm 
A)  0.356 pm 
B)  3.56 pm 
C)  14.0 pm 
D)  7.15 pm 
E)  28.5 pm C

Question 3

What is the binding energy of an electron in a photosensitive metal (in kJ/mol)if the longest wavelength of light that can eject electrons from the metal is 205 nm?

Accepted Answer

A)  279 kJ/mol 
B)  584 kJ/mol 
C)  792 kJ/mol 
D)  1.71 $\times$ 1019 kJ/mol 
E)  5.84 $\times$ 10-20 kJ/mol 
A)  279 kJ/mol 
B)  584 kJ/mol 
C)  792 kJ/mol 
D)  1.71 $\times$ 1019 kJ/mol 
E)  5.84 $\times$ 10-20 kJ/mol B

Question 4

The ________ quantum number is given the symbol   
.This quantum number is related to the orientation in space of an orbital.

Accepted Answer

The answer of The ________ quantum number is given the...

Question 5

Which of the following orbital boundary surfaces is a representation of a   orbital?

Accepted Answer

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

Question 6

What is the energy of a photon of electromagnetic radiation with a frequency of   Hz?

Accepted Answer

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

Question 7

Which of the following is a representation of a 3dxz orbital?

Accepted Answer

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

Question 8

A ________,designated by the Greek symbol $\varPsi$,describes the wave behavior of an electron in an atom.

Accepted Answer

The answer of A ________,designated by the Greek symbol $\varPsi$,describes...

Question 9

What is the energy per mole of photons of light with a frequency of

Accepted Answer

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

Question 10

Which type of orbital is designated n = 1 and   = 0?

Accepted Answer

A)  1s 
B)  2s 
C)  3p 
D)  4d 
E)  1p 
A)  1s 
B)  2s 
C)  3p 
D)  4d 
E)  1p

Question 11

What is the wavelength of a photon having a frequency of 11.7 THz? (1 THz = 1015 Hz)

Accepted Answer

A)  0.0390 nm 
B)  7.76 $\times$ 10-24 nm 
C)  2.33 $\times$ 10-15 nm 
D)  25.6 nm 
E)  2.56 $\times$ 1016 nm 
A)  0.0390 nm 
B)  7.76 $\times$ 10-24 nm 
C)  2.33 $\times$ 10-15 nm 
D)  25.6 nm 
E)  2.56 $\times$ 1016 nm

Question 12

What is the total number of orbitals having n = 4 and   = 0?

Accepted Answer

A)  1 
B)  3 
C)  5 
D)  7 
E)  10 
A)  1 
B)  3 
C)  5 
D)  7 
E)  10

Question 13

The contribution for which de Broglie is best remembered in modern science is

Accepted Answer

A)  his statement that no electron can have identical values for all four quantum numbers. 
B)  his proposal that particles of matter should be associated with wavelike behavior. 
C)  his statement that an electron can exist in an atom only in discrete energy levels. 
D)  his statement that elements show periodic repetition of properties. 
E)  his statement that electrons occupy all the orbitals of a given sublevel singly before pairing begins. 
A)  his statement that no electron can have identical values for all four quantum numbers. 
B)  his proposal that particles of matter should be associated with wavelike behavior. 
C)  his statement that an electron can exist in an atom only in discrete energy levels. 
D)  his statement that elements show periodic repetition of properties. 
E)  his statement that electrons occupy all the orbitals of a given sublevel singly before pairing begins.

Question 14

Which of the following statements is/are CORRECT?
1)A diamagnetic substance is strongly attracted to a magnetic field.
2)Substances that retain their magnetism after they are withdrawn from a magnetic field are called ferromagnetic.
3)Most transition metals and all lanthanide metals are ferromagnetic.

Accepted Answer

A)  1 only 
B)  2 only 
C)  3 only 
D)  1 and 3 
E)  1,2,and 3 
A)  1 only 
B)  2 only 
C)  3 only 
D)  1 and 3 
E)  1,2,and 3

Question 15

The n = ____ shell is the lowest that may contain s-orbitals.

Accepted Answer

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

Question 16

Which of the following sets of quantum numbers (n,l,ml, ms)is not permissible?

Accepted Answer

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

Question 17

What evidence does the photoelectric effect provide that photons are not only waves?

Accepted Answer

The photoelectric effect provides eviden

Question 18

What is the frequency of gamma ray radiation that has a wavelength of 11.4 pm?

Accepted Answer

A)  3.80 $\times$ 10-20 s-1 
B)  1.74 $\times$ 10-14 s-1 
C)  2.63 $\times$ 107 s-1 
D)  3.42 $\times$ 109 s-1 
E)  2.63 $\times$ 1019 s-1 
A)  3.80 $\times$ 10-20 s-1 
B)  1.74 $\times$ 10-14 s-1 
C)  2.63 $\times$ 107 s-1 
D)  3.42 $\times$ 109 s-1 
E)  2.63 $\times$ 1019 s-1

Question 19

What is the total number of orbitals found in the n = 4 shell?

Accepted Answer

A)  16 
B)  4 
C)  20 
D)  24 
E)  15 
A)  16 
B)  4 
C)  20 
D)  24 
E)  15

Question 20

A possible value of the magnetic quantum number   for a 5d electron is

Accepted Answer

A)  2. 
B)  -4. 
C)  5. 
D)  -6. 
E)  3. 
A)  2. 
B)  -4. 
C)  5. 
D)  -6. 
E)  3.

Exam 7: The Structure of Atoms

For which of the following transitions would a hydrogen atom absorb a photon with the longest wavelength?

For a proton (mass = 1.673 ×\times× 10-27 kg)moving with a velocity of 2.83 ×\times× 104 m/s,what is the de Broglie wavelength (in pm)?

What is the binding energy of an electron in a photosensitive metal (in kJ/mol)if the longest wavelength of light that can eject electrons from the metal is 205 nm?

The ________ quantum number is given the symbol .This quantum number is related to the orientation in space of an orbital.

Which of the following orbital boundary surfaces is a representation of a orbital?

What is the energy of a photon of electromagnetic radiation with a frequency of Hz?

Which of the following is a representation of a 3dxz orbital?

A ________,designated by the Greek symbol Ψ\varPsiΨ ,describes the wave behavior of an electron in an atom.

What is the energy per mole of photons of light with a frequency of

Which type of orbital is designated n = 1 and = 0?

What is the wavelength of a photon having a frequency of 11.7 THz? (1 THz = 1015 Hz)

What is the total number of orbitals having n = 4 and = 0?

The contribution for which de Broglie is best remembered in modern science is

The n = ____ shell is the lowest that may contain s-orbitals.

Which of the following sets of quantum numbers (n,l,ml, ms)is not permissible?

What evidence does the photoelectric effect provide that photons are not only waves?

What is the frequency of gamma ray radiation that has a wavelength of 11.4 pm?

What is the total number of orbitals found in the n = 4 shell?

A possible value of the magnetic quantum number for a 5d electron is

Basic Concepts of Chemistry

Mathlets Review: The Tools of Quantitative Chemistry

Atoms, molecules, and Ions

Chemical Reactions

Stoichiometry: Quantitative Information About Chemical Reactions

Principles of Chemical Reactivity: Energy and Chemical Reactions

The Structure of Atoms and Periodic Trends

Bonding and Molecular Structure

Bonding and Molecular Structure: Orbital Hybridization and Molecular Orbitals

Gases and Their Properties

Intermolecular Forces and Liquids

The Chemistry of Solids

Solutions and Their Behavior

Chemical Kinetics: the Rates of Chemical Reactions

Principles of Reactivity: Chemical Equilibria

The Chemistry of Acids and Bases

Principles of Reactivity: Other Aspects of Aqueous Equilibria

Entropy and Free Energy

Principles of Reactivity: Electron Transfer Reactions

Environmental Chemistry Earths Environment,energy,and Sustainability

The Chemistry of the Main Group Elements

The Chemistry of the Transition Elements

Carbon: Not Just Another Element

Biochemistry

Nuclear Chemistry

Filters

For a proton (mass = 1.673 $\times$ 10^-27 kg)moving with a velocity of 2.83 $\times$ 10⁴ m/s,what is the de Broglie wavelength (in pm)?

Which of the following is a representation of a 3d_xz orbital?

A ________,designated by the Greek symbol $\varPsi$ ,describes the wave behavior of an electron in an atom.

What is the wavelength of a photon having a frequency of 11.7 THz? (1 THz = 10¹⁵ Hz)

Which of the following sets of quantum numbers (n,l,m_l_, m_s)is not permissible?