001 Version Exam 1 sparks (51605)
This print-out should have 28 questions.
Multiple-choice questions may continue on
the next column or page nd all choices
before answering.
Mlib 02 0043
001 1.0 points
Most of the volume occupied by a piece of
copper is taken up by the volume of the copper
nuclei.
1
1. longer wavelength, lower frequency, lower
energy
2. longer wavelength,
higher energy
lower frequency,
3. shorter wavelength, lower frequency,
lower energy
4. shorter wavelength, lower frequency,
higher energy
1. False
5. shorter wavelength, higher frequency,
lower energy
2. True
Mlib 62 4095
002 1.0 points
What is the frequency of a 500 nm photon?
1. 6.0 104 Hz
6. longer wavelength, higher frequency,
higher energy
ChemPrin3e 01 02
005 1.0 points
2. 6.0 105 Hz
5
3. 3.3 10 Hz
4. 6.0 1014 Hz
What is the correct order of increasing frequency?
1. radio waves, infrared radiation, ultraviolet radiation, visible light
5. 3.3 1022 Hz
Sparks Light 004
003 1.0 points
Consider a photon of light with a frequency
of 4.0 106 Hz. What is the energy of this
photon?
1. 3.0 10
24
J
2. 5.0 1032 J
2. radio waves, visible light, ultraviolet radiation, infrared radiation
3. radio waves, infrared radiation, visible
light, ultraviolet radiation
4. infrared radiation, radio waves, visible
light, ultraviolet radiation
5. ultraviolet radiation, visible light, infrared radiation, radio waves
3. 1.2 1015 J
4. 2.7 10
27
J
5. 1.7 1040 J
Brodbelt 2008 photon1
004 1.0 points
Compared to a 280 nm photon, a 320 nm
photon has:
Mlib 02 0003
006 1.0 points
According to the results of Einsteins photoelectric eect experiment
1. there is a threshold wavelength; at
longer wavelengths, photoelectrons are produced while at shorter wavelengths they are
not.
Version 001 Exam 1 sparks (51605)
2. there is a threshold intensity; at higher
intensity, photoelectrons are produced while
at lower intensity they are not.
3. there is a threshold frequency; at higher
frequency, photoelectrons are produced while
at lower frequency they are not.
4. there is a threshold temperature; at
higher temperatures, photoelectrons are produced while at lower temperatures they are
not.
Sparks e transitions 006
007 1.0 points
When a certain element is excited with electricity, we see three main lines in its emission
spectrum: Two red lines and one orange line.
What would the absorption spectrum of this
element look like?
1. Similar to the emission spectrum with two
red lines and one orange line, but with each of
those shifted to lower wavelengths
2. It would have lines complementary to the
emission spectrum colors, so it would have
two green lines and one blue line.
3. Identical to the emission spectrum, with
two red lines and one orange line at the same
wavelengths
4. A continuous spectrum broken by thin
black lines at the same wavelengths as the red
and orange lines in the emission spectrum
Brodbelt 567
008 1.0 points
What type of orbital is represented by
principal (n) = 3, subsidiary ( ) = 1,
1
magnetic = 1, spin = ?
2
1. 3p
2. 2p
3. 3d
2
4. 3s, 3p or 3d
5. 3s or 3p
6. 3s
7. 2s
Brodbelt 520057
009 1.0 points
How many electrons can possess this set of
quantum numbers: n = 3, spin quantum
1
number ms = + ?
2
1. 10
2. 4
3. 1
4. 2
5. 3
6. 7
7. 9
8. 8
9. 18
10. 6
atomic doodle
010 1.0 points
A doodle was found on a napkin. The artist
must have had a chemistry class at some
point. Which of the labeled doodles below
best matches the look of an atomic f -orbital?
Version 001 Exam 1 sparks (51605)
3
1. I only
1. D
2. None of the congurations
2. I
3. IV only
3. G
4. More than one of the congurations
4. F
5. III only
5. E
6. II only
6. J
Brodbelt 05 07
013 1.0 points
A comparison of the electron congurations
of cobalt (Co) and chromium (Cr) indicates
that
7. H
8. B
9. C
1. Cr has 2 fewer d electrons and one less s
electron than Co.
10. A
Mlib 02 3009
011 1.0 points
How many are electrons in the third principal
energy level (n = 3) of one atom of Fe?
2. Cr has 3 fewer d electrons and one more s
electron than Co.
3. Cr has 2 fewer d electrons and the same
number of s electrons as Co.
1. 14
4. Cr has 3 fewer d electrons and the same
number of s electrons as Co.
2. 8
5. Cr has 3 fewer d electrons and one less s
electron than Co.
3. 2
4. 18
5. None of these
ChemPrin3e 01 62
012 1.0 points
Which of the following valence-shell congurations
4s 4p
I)
II)
III)
IV)
could describe a neutral atom in its ground
state?
Msci 06 0201
014 1.0 points
For which of the following elements would the
size of the neutral atom (atomic radius) be
largest?
1. Sr
2. Na
3. Rb
4. Ca
5. K
Version 001 Exam 1 sparks (51605)
Msci 06 0212
015 1.0 points
Due to the screening eect, the 3s electrons
of magnesium (Mg) feel an eective nuclear
charge (Ze ) of
4
wavelength?
1. red
2. yellow
1. 2
3. orange
2. +1
4. blue
3. +4
5. green
4. +2
5. +12
DAL 006 0006
016 1.0 points
Rank the following in terms of decreasing
ionic radii.
1. Mg2+ , Na+ , F , O2 , N3
Msci 05 1413
019 1.0 points
Which of the following sets of quantum numbers is allowed for an atomic orbital?
1. n = 3, = 1, m = 2, ms =
1
2
2. n = 1, = 1, m = 1, ms = 1
3. N3 , O2 , F , Na+ , Mg2+
1
2
1
4. n = 1, = 0, m = 1, ms =
2
4. Na+ , Mg2+ , O2 , N3 , F
5. n = 3, = 1, m = 0, ms =
3. n = 2, = 2, m = 1, ms =
2. F , O2 , N3 , Na+ , Mg2+
5. Na+ , Mg2+ , N3 , O2 , F
Msci 06 0500
017 1.0 points
Let X be a hypothetical element.
Which of the following would be largest?
Rad distr plot 01
020 1.0 points
The radial distribution plot shown below
could be from which hydrogen atom wavefunction?
0.15
3. X
4. X
4r 22 a0
1. X2
2. X+
0.10
0.05
5. X2+
CIC T02 03
018 1.0 points
Which color in the rainbow has the longest
1
2
0
1. 1s
0
5
10
15
radius (r/a0)
20
Version 001 Exam 1 sparks (51605)
2. 3s
3. Ca
3. 2s
4. Si
4. 2p
5
5. Fe
5. 3d
Msci 05 1649
021 1.0 points
The electron conguration 1s2 2s2 2p6 3s2 3p6
4s2 3d10 4p6 could represent
1. none of the atoms or ions mentioned.
2. a neutral atom of Rb.
3. a Br ion.
Uncertainty Calc 01 Sparks rev
024 1.0 points
Find the minimum uncertainty in the position
of a cannon ball with a mass of 50,000 g with
an uncertainty in velocity of 100 m s1 .
1. 4.52 1044 m
2. 2.10 1034 m
3. 1.05 1038 m
4. 1.05 1041 m
4. any of the atoms or ions mentioned.
5. a Kr+ ion.
Mlib 02 4051
022 1.0 points
The element whose neutral atoms have three
half-lled 3p orbitals in the ground state conguration is
5. There is not enough information.
De Broglie Wavelength 02 Sparks rev
025 1.0 points
What is the de Broglie wavelength of a bowling ball rolling down a bowling alley lane?
Assume the mass of the ball is 5000 g and it
is moving at 6.63 m/s.
1. Ar.
1. 5 1032 m
2. S.
2. 2 1035 m
3. Cl.
3. 5 1037 m
4. P.
4. 2 1038 m
5. Si.
5. 1 1040 m
Msci 05 1674
023 1.0 points
Which of the following elements is diamagnetic in its ground state electron conguration?
Sparks Wave Particle Dual 001
026 1.0 points
It is useful to think of light both as particles
and as waves, but for electrons it is only useful
to think of them as particles.
1. Cl
1. False
2. K
2. True
Version 001 Exam 1 sparks (51605)
Sparks de Broglie 001
027 1.0 points
Which particle has the largest de Broglie
wavelength, assuming all have approximately
equal velocities?
1. One with a mass of 1 kg
2. One with a mass of 1 mg
3. One with a mass of 1 g
Sparks Quant 001
028 1.0 points
Quantum mechanics allowed the calculation
of
1. the distance between two nuclei in a
molecule.
2. the exact radius of the distance of each
electron from the nucleus as it orbits the nucleus.
3. the 3-dimensional area of highest probability of nding the electrons in an atom.
4. the approximate radius of the distance of
each electron from the nucleus as it orbits the
nucleus.
6