Chemistry
Practice problems Chapter 6
Name___________________________________
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
1) Which one of the following is correct?
A) ν ÷ λ = c
B) ν = cλ
1)
C) νλ = c
D) λ = c ν
E) ν + λ = c
2) The photoelectric effect is __________.
A) a relativistic effect
B) the ejection of electrons by a metal when struck with light of sufficient energy
C) the darkening of photographic film when exposed to an electric field
D) the production of current by silicon solar cells when exposed to sunlight
E) the total reflection of light by metals giving them their typical luster
2)
3) Low-frequency electromagnetic fields with potential biological effects have frequencies of
__________ Hz.
A) 100-10,000
B) 1-1000
C) 10-5 -10-9
3)
D) 10-3 -10-5
E) 400-700
4) In the Bohr model of the atom, __________.
A) electron paths are controlled by probability
B) electrons travel in circular paths called orbitals
C) electrons can have any energy
D) electron energies are quantized
E) both A and C
4)
5) According to the Heisenberg Uncertainty Principle, it is impossible to know precisely both the position and the __________ of an electron.
A) mass
B) shape
C) momentum
D) velocity
E) color
5)
6) The de Broglie wavelength of a __________ will have the shortest wavelength when traveling at 30 cm/s. A) car
B) planet
C) hydrogen atom
D) uranium atom
E) marble
6)
1
7) The uncertainty principle states that __________.
A) it is impossible to know the exact position and momentum of an electron
B) there can only be one uncertain digit in a reported number
C) it is impossible to know anything with certainty
D) matter and energy are really the same thing
E) it is impossible to know how many electrons there are in an atom
7)
8) All of the orbitals in a given electron shell have the same value of the __________ quantum number.
A) azimuthal
Name___________________________________
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
1) Which one of the following is correct?
A) ν ÷ λ = c
B) ν = cλ
1)
C) νλ = c
D) λ = c ν
E) ν + λ = c
2) The photoelectric effect is __________.
A) a relativistic effect
B) the ejection of electrons by a metal when struck with light of sufficient energy
C) the darkening of photographic film when exposed to an electric field
D) the production of current by silicon solar cells when exposed to sunlight
E) the total reflection of light by metals giving them their typical luster
2)
3) Low-frequency electromagnetic fields with potential biological effects have frequencies of
__________ Hz.
A) 100-10,000
B) 1-1000
C) 10-5 -10-9
3)
D) 10-3 -10-5
E) 400-700
4) In the Bohr model of the atom, __________.
A) electron paths are controlled by probability
B) electrons travel in circular paths called orbitals
C) electrons can have any energy
D) electron energies are quantized
E) both A and C
4)
5) According to the Heisenberg Uncertainty Principle, it is impossible to know precisely both the position and the __________ of an electron.
A) mass
B) shape
C) momentum
D) velocity
E) color
5)
6) The de Broglie wavelength of a __________ will have the shortest wavelength when traveling at 30 cm/s. A) car
B) planet
C) hydrogen atom
D) uranium atom
E) marble
6)
1
7) The uncertainty principle states that __________.
A) it is impossible to know the exact position and momentum of an electron
B) there can only be one uncertain digit in a reported number
C) it is impossible to know anything with certainty
D) matter and energy are really the same thing
E) it is impossible to know how many electrons there are in an atom
7)
8) All of the orbitals in a given electron shell have the same value of the __________ quantum number.
A) azimuthal