Question 1

Which of the following characteristic X-ray lines results from the least energetic transition?

Accepted Answer

A)   K  α\alphaα  
B)   K  β\betaβ  
C)   K  γ\gammaγ  
D)   All of these characteristic X-ray lines are the same.
E)   None of these is correct. F) A) and B)
G) A) and C)

Question 2

-16 J B)  66.3 *10-16 J C)  26.5 * 10-16 J D)  39.8 * 10-16 J E)  4 *10-18 J" class="answers-bank-image d-inline" rel="preload" > The graph shows the spectrum of X rays produced by the bombardment of a metal target with high-energy electrons. The maximum kinetic energy of the electrons striking the target is

Accepted Answer

A)   13.3 * 10-16 J
B)   66.3 *10-16 J
C)   26.5 * 10-16 J
D)   39.8 * 10-16 J
E)   4 *10-18 JF) A) and D)
G) B) and E)

Question 3

Mosely showed that the wavelength of K  α\alphaα  characteristic X-ray radiation is directly related to the nuclear property of

Accepted Answer

A)   atomic number.
B)   mass number.
C)   neutron number.
D)   mass defect.
E)   binding energy per nucleon. F) B) and C)
G) A) and E)

Question 4

The electron configuration of nitrogen (Z = 7)  is

Accepted Answer

A)   1s22s22p2 
B)   1s22s32p3 
C)   1s22s32p2 
D)   1s22s22p4 
E)   1s22s22p3 F) A) and E)
G) A) and D)

Question 5

The orbital angular momentum L is related to the orbital quantum number  by

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) B) and C)
G) C) and D)

Question 6

Light of wavelength 411 nm is observed from a hydrogen discharge. What transition produces this emission? The energy of the n = 1 level is -13.6 eV.

Accepted Answer

A)   n = 1.13 to n =1
B)   n = 6 to n = 2
C)   n = 3 to n = 3
D)   n = 2 to n = 6
E)   n = 5 to n = 1F) A) and C)
G) A) and E)

Question 7

The equation derived by Bohr for the wavelengths of  λ\lambdaλ  of the lines in hydrogen- like spectra is 3 nm C)  150 nm D)  60 nm E)  1.8* 10-3 nm " class="answers-bank-image d-inline" rel="preload" > The first member of the Balmer series of hydrogen has  λ\lambdaλ  = 660 nm. Doubly ionized 3 nm C)  150 nm D)  60 nm E)  1.8* 10-3 nm " class="answers-bank-image d-inline" rel="preload" > is hydrogen-like. The wavelength of the first member of the Balmer series for doubly ionized 3 nm C)  150 nm D)  60 nm E)  1.8* 10-3 nm " class="answers-bank-image d-inline" rel="preload" > is

Accepted Answer

A)   73 nm
B)   5.9 * 103 nm
C)   150 nm
D)   60 nm
E)   1.8* 10-3 nm F) A) and E)
G) B) and E)

Question 8

J. J. Thomson's model of an atom

Accepted Answer

A)   had electrons embedded in some kind of fluid that contained most of the mass of the atom.
B)   held that the fluid containing most of the mass of the atom had enough positive charge to make the atom electrically neutral.
C)   failed to predict the observed frequencies for any atom.
D)   depended upon electric forces to produce stability.
E)   All of these are correct.F) B) and D)
G) D) and E)

Exam 16: Atoms

The electron configuration of nitrogen (Z = 7) is

Correct Answer
verified

Light of wavelength 411 nm is observed from a hydrogen discharge. What transition produces this emission? The energy of the n = 1 level is -13.6 eV.

Correct Answer
verified

J. J. Thomson's model of an atom

Correct Answer
verified

Correct Answer
verified

The graph shows the spectrum of X rays produced by the bombardment of a metal target with high-energy electrons. The maximum kinetic energy of the electrons striking the target is

Correct Answer
verified

The orbital angular momentum L is related to the orbital quantum number by

Correct Answer
verified

Which of the following characteristic X-ray lines results from the least energetic transition?

Correct Answer
verified

Mosely showed that the wavelength of K _$\alpha$ characteristic X-ray radiation is directly related to the nuclear property of

Correct Answer
verified

Exam 16: Atoms

The electron configuration of nitrogen (Z = 7) is

Correct AnswerverifiedShow Answer

Light of wavelength 411 nm is observed from a hydrogen discharge. What transition produces this emission? The energy of the n = 1 level is -13.6 eV.

Correct AnswerverifiedShow Answer

J. J. Thomson's model of an atom

Correct AnswerverifiedShow Answer

The equation derived by Bohr for the wavelengths of λ\lambdaλ of the lines in hydrogen- like spectra is The first member of the Balmer series of hydrogen has λ\lambdaλ = 660 nm. Doubly ionized is hydrogen-like. The wavelength of the first member of the Balmer series for doubly ionized is

Correct AnswerverifiedShow Answer

The graph shows the spectrum of X rays produced by the bombardment of a metal target with high-energy electrons. The maximum kinetic energy of the electrons striking the target is

Correct AnswerverifiedShow Answer

The orbital angular momentum L is related to the orbital quantum number by

Correct AnswerverifiedShow Answer

Which of the following characteristic X-ray lines results from the least energetic transition?

Correct AnswerverifiedShow Answer

Mosely showed that the wavelength of K α\alphaα characteristic X-ray radiation is directly related to the nuclear property of

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Mosely showed that the wavelength of K _$\alpha$ characteristic X-ray radiation is directly related to the nuclear property of

Correct Answer
verified