Question 1

What is the approximate total uncertainty in the velocity of an electron (9.11  ×	imes×  10-31 kg) confined within a gold atom whose diameter is about 270 pm? The uncertainty in the position of the electron is ±5.0% of the atom's diameter.

Accepted Answer

A)  ±1.4  ×	imes×  103 m/s
B)  ±2.1  ×	imes×  105 m/s
C)  ±3.7  ×	imes×  105 m/s
D)  ±2.1  ×	imes×  106 m/s
E)  ±4.3  ×	imes×  106 m/s F) B) and D)
G) None of the above

Question 2

Indicate which of the following photons can cause emission of photoelectrons from a surface of gallium ( ϕ\phiϕ = 6.7  ×	imes×  10-19 J) .

Accepted Answer

A)  350 nm
B)  400 nm
C)  200 nm
D)  650 nm
E)  500 nm F) A) and C)
G) B) and E)

Question 3

Which arrangement is in the correct order of decreasing radii?

Accepted Answer

A)  As3- > Br - > K+
B)  F- > Mg+ > Cs
C)  Na+ > Cs+ > I-
D)  Be > Ba+ > O2-
E)  Li+ > Na+ > K+F) A) and E)
G) All of the above

Question 4

Which of the following statements regarding orbitals and wave functions is true?

Accepted Answer

A)  Wave functions are mathematical solutions to the Schrödinger wave equation.
B)  Wave functions specify where an electron is at any given time.
C)  An orbital encloses a region in space around the nucleus where the probability of finding an electron is 1.
D)  The square of the wave function describes how the electron matter wave varies in time and space.
E)  All sine functions are solutions to the Schrödinger equation for the hydrogen atom.F) B) and C)
G) B) and D)

Question 5

Which of the following represents an s orbital?

Accepted Answer

A)   
B)    
C)   
D)   
E)   F) None of the above
G) B) and C)

Question 6

What is the speed of an average argon atom that has a de Broglie wavelength of 5.2 pm? (1 amu = 1.66054  ×	imes×  10-27 kg)

Accepted Answer

A)  0.52 m/s
B)  5.2  ×	imes×  103 m/s
C)  1.9  ×	imes×  103 m/s
D)  1.9 m/s
E)  25 m/s F) A) and D)
G) D) and E)

Question 7

Which set of quantum numbers could be correct for the highest energy electron in lead,Pb?

Accepted Answer

A)  n = 5,  = 0,ms = -   
B)  n = 5,   = 2,m   = -1,ms = +   
C)  n = 6,   = 1,m   = 0,ms = -   
D)  n = 6,   = 1,m   = 2,ms = +   
E)  n = 6,i = 2,m   = 0,ms = -  " class="answers-bank-image d-inline" rel="preload" > = 1,m  = 0,ms = -   
B)  n = 5,   = 2,m   = -1,ms = +   
C)  n = 6,   = 1,m   = 0,ms = -   
D)  n = 6,   = 1,m   = 2,ms = +   
E)  n = 6,i = 2,m   = 0,ms = -  " class="answers-bank-image d-inline" rel="preload" >  = 0,ms = -  = 0,ms = -   
B)  n = 5,   = 2,m   = -1,ms = +   
C)  n = 6,   = 1,m   = 0,ms = -   
D)  n = 6,   = 1,m   = 2,ms = +   
E)  n = 6,i = 2,m   = 0,ms = -  " class="answers-bank-image d-inline" rel="preload" >
B)  n = 5,  = 0,ms = -   
B)  n = 5,   = 2,m   = -1,ms = +   
C)  n = 6,   = 1,m   = 0,ms = -   
D)  n = 6,   = 1,m   = 2,ms = +   
E)  n = 6,i = 2,m   = 0,ms = -  " class="answers-bank-image d-inline" rel="preload" > = 2,m  = 0,ms = -   
B)  n = 5,   = 2,m   = -1,ms = +   
C)  n = 6,   = 1,m   = 0,ms = -   
D)  n = 6,   = 1,m   = 2,ms = +   
E)  n = 6,i = 2,m   = 0,ms = -  " class="answers-bank-image d-inline" rel="preload" > = -1,ms = +  = 0,ms = -   
B)  n = 5,   = 2,m   = -1,ms = +   
C)  n = 6,   = 1,m   = 0,ms = -   
D)  n = 6,   = 1,m   = 2,ms = +   
E)  n = 6,i = 2,m   = 0,ms = -  " class="answers-bank-image d-inline" rel="preload" >
C)  n = 6,  = 0,ms = -   
B)  n = 5,   = 2,m   = -1,ms = +   
C)  n = 6,   = 1,m   = 0,ms = -   
D)  n = 6,   = 1,m   = 2,ms = +   
E)  n = 6,i = 2,m   = 0,ms = -  " class="answers-bank-image d-inline" rel="preload" > = 1,m  = 0,ms = -   
B)  n = 5,   = 2,m   = -1,ms = +   
C)  n = 6,   = 1,m   = 0,ms = -   
D)  n = 6,   = 1,m   = 2,ms = +   
E)  n = 6,i = 2,m   = 0,ms = -  " class="answers-bank-image d-inline" rel="preload" > = 0,ms = -  = 0,ms = -   
B)  n = 5,   = 2,m   = -1,ms = +   
C)  n = 6,   = 1,m   = 0,ms = -   
D)  n = 6,   = 1,m   = 2,ms = +   
E)  n = 6,i = 2,m   = 0,ms = -  " class="answers-bank-image d-inline" rel="preload" >
D)  n = 6,  = 0,ms = -   
B)  n = 5,   = 2,m   = -1,ms = +   
C)  n = 6,   = 1,m   = 0,ms = -   
D)  n = 6,   = 1,m   = 2,ms = +   
E)  n = 6,i = 2,m   = 0,ms = -  " class="answers-bank-image d-inline" rel="preload" > = 1,m  = 0,ms = -   
B)  n = 5,   = 2,m   = -1,ms = +   
C)  n = 6,   = 1,m   = 0,ms = -   
D)  n = 6,   = 1,m   = 2,ms = +   
E)  n = 6,i = 2,m   = 0,ms = -  " class="answers-bank-image d-inline" rel="preload" > = 2,ms = +  = 0,ms = -   
B)  n = 5,   = 2,m   = -1,ms = +   
C)  n = 6,   = 1,m   = 0,ms = -   
D)  n = 6,   = 1,m   = 2,ms = +   
E)  n = 6,i = 2,m   = 0,ms = -  " class="answers-bank-image d-inline" rel="preload" >
E)  n = 6,i = 2,m  = 0,ms = -   
B)  n = 5,   = 2,m   = -1,ms = +   
C)  n = 6,   = 1,m   = 0,ms = -   
D)  n = 6,   = 1,m   = 2,ms = +   
E)  n = 6,i = 2,m   = 0,ms = -  " class="answers-bank-image d-inline" rel="preload" > = 0,ms = -  = 0,ms = -   
B)  n = 5,   = 2,m   = -1,ms = +   
C)  n = 6,   = 1,m   = 0,ms = -   
D)  n = 6,   = 1,m   = 2,ms = +   
E)  n = 6,i = 2,m   = 0,ms = -  " class="answers-bank-image d-inline" rel="preload" >F) C) and D)
G) B) and C)

Question 8

Which of the following statements is NOT true regarding blackbody radiation,the ultraviolet catastrophe,and Planck's view of electromagnetic radiation?

Accepted Answer

A)  A blackbody radiator does not absorb and emit one wavelength preferentially over another.
B)  The emission spectrum of a blackbody radiator depends on its temperature.
C)  A blackbody radiator cannot emit an infinite amount of radiation.
D)  Planck theorized that real objects can only absorb or emit discrete packets of electromagnetic radiation.
E)  The ultraviolet catastrophe disappears if emission spectrum of a blackbody radiator is continuous.F) D) and E)
G) C) and D)

Question 9

Astronomers have detected hydrogen atoms in interstellar space in the n = 732 energy level.Suppose an atom in this excited state emits a photon and undergoes a transition from n = 732 to n = 2.How much energy does the atom lose as a result of this transition? What is the wavelength of the emitted radiation? Is this transition part of the Lyman,Balmer,or Paschen series?

Accepted Answer

5.45

10^-¹⁹ J of e...

Question 10

Indicate which metal requires the shortest wavelength photons to eject photoelectrons based on the following data and graph.Work functions are in J  ×	imes× 10-19. -19.   A) Ta B) Ti C) W D) Si E) Ag " class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  Ta
B)  Ti
C)  W
D)  Si
E)  Ag F) A) and E)
G) B) and C)

Question 11

Which transition in a hydrogen atom involves the largest change in energy?

Accepted Answer

A)  n1 = 2 to n2 = 3
B)  n1 = 3 to n2 = 4
C)  n1 = 1 to n2 = 3
D)  n1 = 1 to n2 = 2
E)  n1 = 9 to n2 = 10F) A) and B)
G) B) and D)

Question 12

A shell consists of all __________

Accepted Answer

A)  electrons with the same  quantum number.
B)  orbitals with the same quantum numbers.
C)  orbitals with the same principal quantum number.
D)  electrons with the same magnetic quantum number.
E)  orbitals with the same  and m  quantum numbers.F) A) and C)
G) B) and E)

Question 13

Arrange the following elements in order of increasing first ionization energy: 9F,12Mg,15P,17Cl.

Accepted Answer

Question 14

The de Broglie wavelength of a particle traveling at 1% of the speed of light is 33.25 fm.Identify the particle from the following.(1 amu = 1.66054  ×	imes×  10-27 kg)

Accepted Answer

A)  a proton (1.00727 amu) 
B)  a neutron (1.00866 amu) 
C)  an electron (0.0005486 amu) 
D)  a hydrogen atom
E)  a helium atom F) A) and C)
G) None of the above

Question 15

Which of the following is the ground-state electron configuration of the Mg2+ ion?

Accepted Answer

A)  1s22s22p63s2
B)  [Ne]3s2
C)  [Ne]3s23p2
D)  [He]2s22p6
E)  [He]2s22p8F) B) and D)
G) B) and E)

Question 16

Which of the following is the correct condensed electron configuration for indium?

Accepted Answer

A)  [Kr]5s24d105p1
B)  [Kr]5s24d85p3
C)  [Kr]4d105p3
D)  [Kr]5s24d55p6
E)  [Kr]5s14d105p2F) C) and D)
G) None of the above

Question 17

Orbitals within a given subshell have the __________

Accepted Answer

A)  same principal and angular momentum quantum numbers.
B)  same principal quantum numbers.
C)  same angular momentum quantum numbers.
D)  same angular momentum and magnetic quantum numbers.
E)  same spin quantum number.F) C) and E)
G) A) and D)

Question 18

What information do boundary-surface representations of orbitals provide?

Accepted Answer

A)  They enclose a region in which the probability of finding the electron is about 90%.
B)  They show the radial nodes in an orbital.
C)  They depict the path the electron takes over time.
D)  They are graphical solutions to the Schrödinger equation.
E)  They plot Ψ 2 versus distance from the nucleus.F) A) and C)
G) None of the above

Question 19

Which of the following elements has the ground-state electron configuration 1s22s22p63s23p4?

Accepted Answer

A)  Al
B)  S
C)  Cl
D)  P
E)  ArF) D) and E)
G) A) and B)

Question 20

Which of the following occurs only in discrete (quantized) increments?

Accepted Answer

A)  the speed a car drives on the interstate
B)  the altitude that an airplane flies
C)  time
D)  the level of water in a sink
E)  moneyF) B) and D)
G) B) and C)

Exam 3: Atomic Structure-Explaining the Properties of Elements

Which of the following is the ground-state electron configuration of the Mg²⁺ ion?

Correct Answer
verified

Which transition in a hydrogen atom involves the largest change in energy?

Correct Answer
verified

Which set of quantum numbers could be correct for the highest energy electron in lead,Pb?

Correct Answer
verified

Indicate which of the following photons can cause emission of photoelectrons from a surface of gallium ( $\phi$ = 6.7 $\times$ 10^-¹⁹ J) .

Correct Answer
verified

Which of the following is the correct condensed electron configuration for indium?

Correct Answer
verified

What is the speed of an average argon atom that has a de Broglie wavelength of 5.2 pm? (1 amu = 1.66054 $\times$ 10^-27 kg)

Correct Answer
verified

Which of the following statements is NOT true regarding blackbody radiation,the ultraviolet catastrophe,and Planck's view of electromagnetic radiation?

Correct Answer
verified

Correct Answer
verified
5.45 10^-¹⁹ J of e...
View Answer

Which of the following occurs only in discrete (quantized) increments?

Correct Answer
verified

Orbitals within a given subshell have the __________

Correct Answer
verified

The de Broglie wavelength of a particle traveling at 1% of the speed of light is 33.25 fm.Identify the particle from the following.(1 amu = 1.66054 $\times$ 10^-27 kg)

Correct Answer
verified

Which arrangement is in the correct order of decreasing radii?

Correct Answer
verified

Arrange the following elements in order of increasing first ionization energy: ₉F,₁₂Mg,₁₅P,₁₇Cl.

Correct Answer
verified

What information do boundary-surface representations of orbitals provide?

Correct Answer
verified

Which of the following represents an s orbital?

Correct Answer
verified

A shell consists of all __________

Correct Answer
verified

Which of the following elements has the ground-state electron configuration 1s²2s²2p⁶3s²3p⁴?

Correct Answer
verified

Which of the following statements regarding orbitals and wave functions is true?

Correct Answer
verified

What is the approximate total uncertainty in the velocity of an electron (9.11 $\times$ 10^-31 kg) confined within a gold atom whose diameter is about 270 pm? The uncertainty in the position of the electron is ±5.0% of the atom's diameter.

Correct Answer
verified

Correct Answer
verified

Exam 3: Atomic Structure-Explaining the Properties of Elements

Which of the following is the ground-state electron configuration of the Mg2+ ion?

Correct AnswerverifiedShow Answer

Which transition in a hydrogen atom involves the largest change in energy?

Correct AnswerverifiedShow Answer

Which set of quantum numbers could be correct for the highest energy electron in lead,Pb?

Correct AnswerverifiedShow Answer

Indicate which of the following photons can cause emission of photoelectrons from a surface of gallium ( ϕ\phiϕ = 6.7 ×\times× 10-19 J) .

Correct AnswerverifiedShow Answer

Which of the following is the correct condensed electron configuration for indium?

Correct AnswerverifiedShow Answer

What is the speed of an average argon atom that has a de Broglie wavelength of 5.2 pm? (1 amu = 1.66054 ×\times× 10-27 kg)

Correct AnswerverifiedShow Answer

Which of the following statements is NOT true regarding blackbody radiation,the ultraviolet catastrophe,and Planck's view of electromagnetic radiation?

Correct AnswerverifiedShow Answer

Correct Answerverified5.45 10-19 J of e...View AnswerShow Answer

Which of the following occurs only in discrete (quantized) increments?

Correct AnswerverifiedShow Answer

Orbitals within a given subshell have the __________

Correct AnswerverifiedShow Answer

The de Broglie wavelength of a particle traveling at 1% of the speed of light is 33.25 fm.Identify the particle from the following.(1 amu = 1.66054 ×\times× 10-27 kg)

Correct AnswerverifiedShow Answer

Which arrangement is in the correct order of decreasing radii?

Correct AnswerverifiedShow Answer

Arrange the following elements in order of increasing first ionization energy: 9F,12Mg,15P,17Cl.

Correct AnswerverifiedShow Answer

What information do boundary-surface representations of orbitals provide?

Correct AnswerverifiedShow Answer

Which of the following represents an s orbital?

Correct AnswerverifiedShow Answer

A shell consists of all __________

Correct AnswerverifiedShow Answer

Which of the following elements has the ground-state electron configuration 1s22s22p63s23p4?

Correct AnswerverifiedShow Answer

Which of the following statements regarding orbitals and wave functions is true?

Correct AnswerverifiedShow Answer

What is the approximate total uncertainty in the velocity of an electron (9.11 ×\times× 10-31 kg) confined within a gold atom whose diameter is about 270 pm? The uncertainty in the position of the electron is ±5.0% of the atom's diameter.

Correct AnswerverifiedShow Answer

Indicate which metal requires the shortest wavelength photons to eject photoelectrons based on the following data and graph.Work functions are in J ×\times× 10-19.

Correct AnswerverifiedShow Answer

Which of the following is the ground-state electron configuration of the Mg²⁺ ion?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Indicate which of the following photons can cause emission of photoelectrons from a surface of gallium ( $\phi$ = 6.7 $\times$ 10^-¹⁹ J) .

Correct Answer
verified

Correct Answer
verified

What is the speed of an average argon atom that has a de Broglie wavelength of 5.2 pm? (1 amu = 1.66054 $\times$ 10^-27 kg)

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
5.45 10^-¹⁹ J of e...
View Answer

Correct Answer
verified

Correct Answer
verified

The de Broglie wavelength of a particle traveling at 1% of the speed of light is 33.25 fm.Identify the particle from the following.(1 amu = 1.66054 $\times$ 10^-27 kg)

Correct Answer
verified

Correct Answer
verified

Arrange the following elements in order of increasing first ionization energy: ₉F,₁₂Mg,₁₅P,₁₇Cl.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Which of the following elements has the ground-state electron configuration 1s²2s²2p⁶3s²3p⁴?

Correct Answer
verified

Correct Answer
verified

What is the approximate total uncertainty in the velocity of an electron (9.11 $\times$ 10^-31 kg) confined within a gold atom whose diameter is about 270 pm? The uncertainty in the position of the electron is ±5.0% of the atom's diameter.

Correct Answer
verified

Correct Answer
verified