18. Which quantum number describes orientation of orbitals in space? A. Principal quantum number B. Magnetic quantum number C. Bohr quantum number D. Einstein quantum number E. Angular momentum quantum number 19. Which of the following sets of quantum numbers is acceptable for an electron in hydrogen atom? A. B=1,1=1, m=0 B. n=1,1=0, m=0 C. n=0,1-0, m=0 D. n=0,1=1, m=0 E a=1,1=0, m=1 20. What is the value of the angular momentum quantum number that corresponds to atomic orbitals with shape shown below? A. 1=2 B. 1-2 C. 1=0 D. I=1 E 1=-1

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18. Which quantum number describes orientation of orbitals in space?
A. Principal quantum number
B. Magnetic quantum number
C. Bohr quantum number
D. Einstein quantum number
E. Angular momentum quantum number
19. Which of the following sets of quantum numbers is acceptable for an electron in hydrogen
atom?
A. a=1,1=1, m=0
B. n=1,1=0, m=0
C. n=0,1-0, m=0
D. a=0,1=1, m=0
E. a=1,1=0, m=1
20. What is the value of the angular momentum quantum number that corresponds to atomic
orbitals with shape shown below?
A. 1=2
B. 1-2
C. 1=0
D. I=1
E 1=-1
BONUS: Part of the Nobel Prize in Physics in 2018 was awarded for invention of chirped pulse
amplification technique that can be used to generate very short and powerful pulses of light.
Suppose that such technique is used to produce a pulse with duration of 5.0 x 10-s. If you
consider this pulse frozen at one instant of time, what would be the length of the pulse?
A. 1.5 x 10-5m
B. 0.0015 m
C. 1.7 x 10-22m
D. 6.0 x 1021 m
E. 1.7 x 10-20 m
Transcribed Image Text:18. Which quantum number describes orientation of orbitals in space? A. Principal quantum number B. Magnetic quantum number C. Bohr quantum number D. Einstein quantum number E. Angular momentum quantum number 19. Which of the following sets of quantum numbers is acceptable for an electron in hydrogen atom? A. a=1,1=1, m=0 B. n=1,1=0, m=0 C. n=0,1-0, m=0 D. a=0,1=1, m=0 E. a=1,1=0, m=1 20. What is the value of the angular momentum quantum number that corresponds to atomic orbitals with shape shown below? A. 1=2 B. 1-2 C. 1=0 D. I=1 E 1=-1 BONUS: Part of the Nobel Prize in Physics in 2018 was awarded for invention of chirped pulse amplification technique that can be used to generate very short and powerful pulses of light. Suppose that such technique is used to produce a pulse with duration of 5.0 x 10-s. If you consider this pulse frozen at one instant of time, what would be the length of the pulse? A. 1.5 x 10-5m B. 0.0015 m C. 1.7 x 10-22m D. 6.0 x 1021 m E. 1.7 x 10-20 m
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