Question 1

De Broglie explained electron movements by relating them to
A.waves only.
B.particles only.
C.waves and particles.
D.none of the.

Accepted Answer

A.waves only.B.parti...

Question 2

A(n) _________ is a point at which a standing wave has zero amplitude.

Accepted Answer

A)  crevice
B)  node
C)  pit
D)  burrow
E)  orbitalF) B) and C)
G) B) and E)

Question 3

Why do we only see four lines in the emission spectrum of hydrogen?

Accepted Answer

Only four of the ele...

Question 4

For all atoms of the same element,the 2s orbital is larger than the 1s orbital.

Accepted Answer

A) True 
 B)False

Question 5

Emission spectra

Accepted Answer

A)  cannot be used to identify an unknown atom.
B)  can be used to identify unknown atoms.
C)  can be explained by the movement of protons colliding with electrons.
D)  none of the.E) All of the above
F) A) and C)

Question 6

How many electrons are there in the 3rd principal energy level (n = 3) of a phosphorus atom?

Accepted Answer

A)  3
B)  5
C)  6
D)  8
E)  10F) A) and E)
G) B) and E)

Question 7

The word _________ is used as an acronym for the amplification of light which is stimulated by the emission of radiation.

Accepted Answer

A)  beam
B)  laser
C)  emit
D)  brighten
E)  lightF) A) and B)
G) A) and C)

Question 8

___________________ is the wavelength associated with a moving particle.

Accepted Answer

A)  The de Broglie wavelength
B)  The Heisenburg wavelength
C)  The Hund wavelength
D)  The Aufbau wavelength
E)  None of the answers is correct.F) B) and C)
G) C) and E)

Question 9

According to ___________,no two electrons in an atom can have the same four quantum numbers.

Accepted Answer

the Pauli ...

Question 10

In not more than three lines for each answer,briefly outline one important scientific contribution of each of the following.
a)Planck
b)De Broglie
c)Heisenberg

Accepted Answer

a.Planck is responsible for first propos...

Question 11

A 6.0-gram champagne cork is shot out of an opened champagne bottle and traveled at a speed of 65 km/hour.Calculate the de Broglie wavelength (in meters) of the cork.

Accepted Answer

A)  6.1 × 10-33 m
B)  1.7 × 10-36 m
C)  6.1 × 10-36 m
D)  1.7 × 10-33 m
E)  5.5 × 10-20 mF) C) and D)
G) A) and B)

Question 12

Each shell (principal energy level)of quantum number n contains n subshells.

Accepted Answer

A) True 
 B)False

Question 13

What is the emission of light at only specific wavelengths?

Accepted Answer

A)  Emission spectra
B)  Hydrogen spectrum
C)  Wave spectra
D)  Limited spectra
E)  Line spectraF) A) and C)
G) A) and E)

Question 14

If n = 2 then l = 0,-1,and 1.

Accepted Answer

A) True 
 B)False

Question 15

An electron in a 3p orbital could have a value of 2 for its angular momentum quantum number (l).

Accepted Answer

A) True 
 B)False

Question 16

What is defined as the number of waves that pass through a particular point in one second?

Accepted Answer

A)  light
B)  amplitude
C)  magnitude
D)  wavelength
E)  frequencyF) A) and B)
G) C) and D)

Question 17

What is the electron configuration for bromine?

Accepted Answer

A)  1s22s22p63s23p64s14d104p6
B)  1s22s22p63s23p64s24d104p5
C)  1s22s22p63s23p64s13d104p6
D)  1s22s22p63s23p64s23d104p4
E)  1s22s22p63s23p64s23d104p5F) A) and B)
G) B) and C)

Question 18

In which region of the electromagnetic spectrum would radiation of the wavelength λ = 147.3 nm be found?

Accepted Answer

The answer of In which region of the electromagnetic spectrum...

Question 19

The ground-state electron configuration of a calcium atom is

Accepted Answer

A)  [Ne]3s2.
B)  [Ne]3s23p6.
C)  [Ar]4s13d1.
D)  [Ar]4s2.
E)  [Ar]3d2.F) A) and B)
G) All of the above

Question 20

The frequency of a photon is inversely proportional to the wavelength of the radiation.

Accepted Answer

A) True 
 B)False

Exam 6: Quantum Theory and the Electronic Structure of Atoms

In which region of the electromagnetic spectrum would radiation of the wavelength λ = 147.3 nm be found?

Correct AnswerverifiedShow Answer

For all atoms of the same element,the 2s orbital is larger than the 1s orbital.

Correct AnswerverifiedShow Answer

A 6.0-gram champagne cork is shot out of an opened champagne bottle and traveled at a speed of 65 km/hour.Calculate the de Broglie wavelength (in meters) of the cork.

Correct AnswerverifiedShow Answer

How many electrons are there in the 3rd principal energy level (n = 3) of a phosphorus atom?

Correct AnswerverifiedShow Answer

If n = 2 then l = 0,-1,and 1.

Correct AnswerverifiedShow Answer

In not more than three lines for each answer,briefly outline one important scientific contribution of each of the following. a)Planck b)De Broglie c)Heisenberg

Correct Answerverifieda.Planck is responsible for first propos...View AnswerShow Answer

An electron in a 3p orbital could have a value of 2 for its angular momentum quantum number (l).

Correct AnswerverifiedShow Answer

The word _________ is used as an acronym for the amplification of light which is stimulated by the emission of radiation.

Correct AnswerverifiedShow Answer

What is the emission of light at only specific wavelengths?

Correct AnswerverifiedShow Answer

Emission spectra

Correct AnswerverifiedShow Answer

De Broglie explained electron movements by relating them to A.waves only. B.particles only. C.waves and particles. D.none of the.

Correct AnswerverifiedA.waves only.B.parti...View AnswerShow Answer

Why do we only see four lines in the emission spectrum of hydrogen?

Correct AnswerverifiedOnly four of the ele...View AnswerShow Answer

According to ___________,no two electrons in an atom can have the same four quantum numbers.

Correct Answerverifiedthe Pauli ...View AnswerShow Answer

Each shell (principal energy level)of quantum number n contains n subshells.

Correct AnswerverifiedShow Answer

What is defined as the number of waves that pass through a particular point in one second?

Correct AnswerverifiedShow Answer

The frequency of a photon is inversely proportional to the wavelength of the radiation.

Correct AnswerverifiedShow Answer

The ground-state electron configuration of a calcium atom is

Correct AnswerverifiedShow Answer

___________________ is the wavelength associated with a moving particle.

Correct AnswerverifiedShow Answer

What is the electron configuration for bromine?

Correct AnswerverifiedShow Answer

A(n) _________ is a point at which a standing wave has zero amplitude.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

How many electrons are there in the 3^rd principal energy level (n = 3) of a phosphorus atom?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
a.Planck is responsible for first propos...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A.waves only.B.parti...
View Answer

Correct Answer
verified
Only four of the ele...
View Answer

Correct Answer
verified
the Pauli ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified