Question 1

Which of the following statements with respect to the photoelectric effect is incorrect?

Accepted Answer

A)  A plot of the kinetic energy of the ejected electrons versus the frequency of the incident radiation has a slope that is equal to the value of the work function. 
B)  All metals have a unique work function. 
C)  The kinetic energy of the ejected electrons does not increase with the intensity of the incident radiation. 
D)  A plot of the kinetic energy of the ejected electrons versus the frequency of the incident radiation is linear. 
A)  A plot of the kinetic energy of the ejected electrons versus the frequency of the incident radiation has a slope that is equal to the value of the work function. 
B)  All metals have a unique work function. 
C)  The kinetic energy of the ejected electrons does not increase with the intensity of the incident radiation. 
D)  A plot of the kinetic energy of the ejected electrons versus the frequency of the incident radiation is linear.

Question 2

Which atom has the highest first ionization energy?

Accepted Answer

A)  Pb 
B)  Sn 
C)  Ge 
D)  Si 
A)  Pb 
B)  Sn 
C)  Ge 
D)  Si

Question 3

Estimate the minimum uncertainty in the position of an electron of mass 9.109 *10-31 kg, given that its speed is unknown to within ±3.00 * 105m·s-1.

Accepted Answer

A)  386 pm 
B)  386 *10-12 m 
C)  193 pm 
D)  1.93 * 10-12 
A)  386 pm 
B)  386 *10-12 m 
C)  193 pm 
D)  1.93 * 10-12

Question 4

A mole of photons with a frequency of 7.5 * 1016 Hz has what energy?

Accepted Answer

A)  3.0 * 10-7J/mol 
B)  4.2 * 106J/mol 
C)  3.3 * 10-8J/mol 
D)  3.0 * 107J/mol 
E)  3.3 * 108J/mol  
A)  3.0 * 10-7J/mol 
B)  4.2 * 106J/mol 
C)  3.3 * 10-8J/mol 
D)  3.0 * 107J/mol 
E)  3.3 * 108J/mol

Question 5

All the following can have the ground-state electron configuration [Xe]4f145d10 except

Accepted Answer

A)  Pb4+.  
B)  Hg2+.  
C)  Bi5+.  
D)  Tl+.  
E)  Au+.  
A)  Pb4+.  
B)  Hg2+.  
C)  Bi5+.  
D)  Tl+.  
E)  Au+.

Question 6

Which of the following has the largest radius?

Accepted Answer

A)  P3? 
B)  Cl- 
C)  K+ 
D)  Cl 
E)  N3? 
A)  P3? 
B)  Cl- 
C)  K+ 
D)  Cl 
E)  N3?

Question 7

How many f electrons are in a gadolinium atom?

Accepted Answer

A)  7 
B)  6 
C)  5 
D)  4 
E)  3 
A)  7 
B)  6 
C)  5 
D)  4 
E)  3

Question 8

Which of the following has the largest wavelengths?

Accepted Answer

A)  Red visible light 
B)  Blue visible light 
C)  Microwaves 
D)  Ultraviolet radiation 
E)  Gamma radiation 
A)  Red visible light 
B)  Blue visible light 
C)  Microwaves 
D)  Ultraviolet radiation 
E)  Gamma radiation

Question 9

Which of the following has the highest energy per photon?

Accepted Answer

A)  Infrared 
B)  Blue light 
C)  Green light 
D)  Orange light 
E)  Red light 
A)  Infrared 
B)  Blue light 
C)  Green light 
D)  Orange light 
E)  Red light

Question 10

Consider the following ground-state electronic configurations .
Which atom has the highest electron affinity?

Accepted Answer

A)  [He] 2s22p5 
B)  [He] 2s22p3 
C)  [He] 2s22p1 
D)  [He] 2s22p4 
A)  [He] 2s22p5 
B)  [He] 2s22p3 
C)  [He] 2s22p1 
D)  [He] 2s22p4

Question 11

Estimate the frequency of the wave shown below.

Accepted Answer

A)  1.5 × 1017 s-1 
B)  3.0 × 1017 s-1 
C)  1.0 × 1017 s-1 
D)  2.0 × 1017 s-1 
E)  Not enough information is given to permit calculation of the frequency. 
A)  1.5 × 1017 s-1 
B)  3.0 × 1017 s-1 
C)  1.0 × 1017 s-1 
D)  2.0 × 1017 s-1 
E)  Not enough information is given to permit calculation of the frequency.

Question 12

A photon with energy of 3.9 * 10-17 J has what frequency, in /sec?

Accepted Answer

A)  6.6 * 10-34  
B)  3.7 * 1015  
C)  3.7 * 10-19 
D)  2.7 * 1014  
E)  2.7 * 10-14  
A)  6.6 * 10-34  
B)  3.7 * 1015  
C)  3.7 * 10-19 
D)  2.7 * 1014  
E)  2.7 * 10-14

Question 13

Light of wavelength 242 nm ionizes a sodium ion in the gas phase; what is the ionization energy of sodium?

Accepted Answer

A)  8.20 kJ.mol-1 
B)  988 kJ.mol-1 
C)  198 kJ.mol-1 
D)  494 kJ.mol-1 
E)  247 kJ.mol-1 
A)  8.20 kJ.mol-1 
B)  988 kJ.mol-1 
C)  198 kJ.mol-1 
D)  494 kJ.mol-1 
E)  247 kJ.mol-1

Question 14

A lawyer who received a speeding ticket argues that because of the Heisenberg uncertainty principle the radar reading is uncertain .The judge, Who happens to have a science degree,Rules against the lawyer.Which of the following statements is true?

Accepted Answer

A)  The judge is incorrect because the uncertainty in position is large. 
B)  The judge is correct because the car is so massive that the uncertainty in speed is very small. 
C)  The judge is correct because the uncertainty in momentum is very large. 
D)  The judge is incorrect because radar has only wave characteristics. 
E)  The judge is incorrect because (m $\triangle $v)($\triangle $x) $ \geq $ $\frac { 1 } { 2 }$ h. 
A)  The judge is incorrect because the uncertainty in position is large. 
B)  The judge is correct because the car is so massive that the uncertainty in speed is very small. 
C)  The judge is correct because the uncertainty in momentum is very large. 
D)  The judge is incorrect because radar has only wave characteristics. 
E)  The judge is incorrect because (m $\triangle $v)($\triangle $x) $ \geq $ $\frac { 1 } { 2 }$ h.

Question 15

All the following can have the ground-state electron configuration [Kr]4d10 except

Accepted Answer

A)  Cd2+.  
B)  Ag+.  
C)  Pd. 
D)  In+.  
E)  Sn4+. 
A)  Cd2+.  
B)  Ag+.  
C)  Pd. 
D)  In+.  
E)  Sn4+.

Question 16

Which of the following is likely to form ions two units lower in charge than expected from the group number?

Accepted Answer

A)  Tl 
B)  Hg 
C)  Zn 
D)  Se 
E)  Cd 
A)  Tl 
B)  Hg 
C)  Zn 
D)  Se 
E)  Cd

Question 17

What wavelength does radiation have when its frequency is 5.6*1013 /sec?

Accepted Answer

A)  5.4*10-9 m 
B)  5.4*10-8 m 
C)  5.4*10-7 m 
D)  5.4*10-6 m 
E)  5.4*10-6 cm 
A)  5.4*10-9 m 
B)  5.4*10-8 m 
C)  5.4*10-7 m 
D)  5.4*10-6 m 
E)  5.4*10-6 cm

Question 18

Which quantum number is independent of the others?

Accepted Answer

A)  The principle quantum number 
B)  The azimuthal quantum number 
C)  The magnetic quantum number 
D)  The spin quantum number 
E)  None,There is some form of dependence for each. 
A)  The principle quantum number 
B)  The azimuthal quantum number 
C)  The magnetic quantum number 
D)  The spin quantum number 
E)  None,There is some form of dependence for each.

Question 19

Which of the following metals has the lowest work function?

Accepted Answer

A)  Be 
B)  Sr 
C)  Li 
D)  Rb 
A)  Be 
B)  Sr 
C)  Li 
D)  Rb

Question 20

Which of the following corresponds to an X-radiation wavelength?

Accepted Answer

A)  0.0001 nm 
B)  0.001 nm 
C)  9 cm 
D)  9 nm 
E)  95 nm 
A)  0.0001 nm 
B)  0.001 nm 
C)  9 cm 
D)  9 nm 
E)  95 nm

Which of the following statements with respect to the photoelectric effect is incorrect?

Which atom has the highest first ionization energy?

Estimate the minimum uncertainty in the position of an electron of mass 9.109 10^-31 kg, given that its speed is unknown to within ±3.00 10⁵m·s^-1.

A mole of photons with a frequency of 7.5 * 10¹⁶ Hz has what energy?

All the following can have the ground-state electron configuration [Xe]4f¹⁴5d¹⁰ except

Which of the following has the largest radius?

How many f electrons are in a gadolinium atom?

Which of the following has the largest wavelengths?

Which of the following has the highest energy per photon?

Consider the following ground-state electronic configurations . Which atom has the highest electron affinity?

Estimate the frequency of the wave shown below.

A photon with energy of 3.9 * 10^-17 J has what frequency, in /sec?

Light of wavelength 242 nm ionizes a sodium ion in the gas phase; what is the ionization energy of sodium?

A lawyer who received a speeding ticket argues that because of the Heisenberg uncertainty principle the radar reading is uncertain .The judge, Who happens to have a science degree,Rules against the lawyer.Which of the following statements is true?

All the following can have the ground-state electron configuration [Kr]4d¹⁰ except

Which of the following is likely to form ions two units lower in charge than expected from the group number?

What wavelength does radiation have when its frequency is 5.6*10¹³ /sec?

Which quantum number is independent of the others?

Which of the following metals has the lowest work function?

Which of the following corresponds to an X-radiation wavelength?

Molecules

States of Matter

Thermodynamics

Equilibrium

Reactions

Kinetics

The Main-Group Elements

The D-Block Elements

Nuclear Chemistry

Organic Chemistry

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Exam 1: Atoms

Which of the following statements with respect to the photoelectric effect is incorrect?

Which atom has the highest first ionization energy?

Estimate the minimum uncertainty in the position of an electron of mass 9.109 *10-31 kg, given that its speed is unknown to within ±3.00 * 105m·s-1.

A mole of photons with a frequency of 7.5 * 1016 Hz has what energy?

All the following can have the ground-state electron configuration [Xe]4f145d10 except

Which of the following has the largest radius?

How many f electrons are in a gadolinium atom?

Which of the following has the largest wavelengths?

Which of the following has the highest energy per photon?

Consider the following ground-state electronic configurations . Which atom has the highest electron affinity?

Estimate the frequency of the wave shown below.

A photon with energy of 3.9 * 10-17 J has what frequency, in /sec?

Light of wavelength 242 nm ionizes a sodium ion in the gas phase; what is the ionization energy of sodium?

A lawyer who received a speeding ticket argues that because of the Heisenberg uncertainty principle the radar reading is uncertain .The judge, Who happens to have a science degree,Rules against the lawyer.Which of the following statements is true?

All the following can have the ground-state electron configuration [Kr]4d10 except

Which of the following is likely to form ions two units lower in charge than expected from the group number?

What wavelength does radiation have when its frequency is 5.6*1013 /sec?

Which quantum number is independent of the others?

Which of the following metals has the lowest work function?

Which of the following corresponds to an X-radiation wavelength?

Molecules

States of Matter

Thermodynamics

Equilibrium

Reactions

Kinetics

The Main-Group Elements

The D-Block Elements

Nuclear Chemistry

Organic Chemistry

Filters

Estimate the minimum uncertainty in the position of an electron of mass 9.109 10^-31 kg, given that its speed is unknown to within ±3.00 10⁵m·s^-1.

A mole of photons with a frequency of 7.5 * 10¹⁶ Hz has what energy?

All the following can have the ground-state electron configuration [Xe]4f¹⁴5d¹⁰ except

A photon with energy of 3.9 * 10^-17 J has what frequency, in /sec?

All the following can have the ground-state electron configuration [Kr]4d¹⁰ except

What wavelength does radiation have when its frequency is 5.6*10¹³ /sec?