The Units, The Conversions, and The Sig Figs
Feelin' Light
Atom-tomy
My Chemical Romance
Who Doesn't Love Quantum Mechanics?
100

Which of the following numbers has 3 significant figures?

A. 0.02670
B. 500
C. 1.260
D. 0.300
E. 1.5 E2

D) 0.300

100

Which statement best describes the behavior of light?

A) It behaves only as a particle
B) It behaves only as a wave
C) It behaves only as a quark
D) It exhibits both particle and wave properties
E) It exhibits all of the above behaviors

D) It exhibits both particle and wave properties

100

Which of the following statements is NOT true for protons?


A) The number of protons determine the identity of an element
B) They are found in the nucleus.
C) They have a negative charge.
D) The number of protons is different in every atom
E) Protons contribute to the atomic mass number

C) They have a negative charge

100

What charge do alkaline earth metals commonly have?
A. +1
B. +2
C. -1
D. -2
E. Variable

B. +2

100

Which of these electron spin configurations would be correct for the ms quantum number?

A. 1+, 0, 1-
B. 1/2+, 1/2-
C. 1, 2, 3, 4
D. 1+, 1-
E. 0, 1

B. 1/2+, 1/2-

200

Which of the following conversion factors are INCORRECT?

A) 1 km = 1000 meters
B) 1 meter = 1 x 109 ng
C) 1 x 10-6 μg = 1 meter
D) 1 km = 1 x 104 dm
E) 3,600 s = 1 hr

C) 1 x 10-6 μg = 1 meter

200

A wave was found to have a frequency of 9.0 x 1015 s-1. Calculate its wavelength.

A. 3.3 x 10-8 nm
B. 3.3 x 10-8 m
C. 3.3 x 108 m
D. 3.3 x 10-9 nm
E. 3.3 x 109 m

c = 2.998 x 108 m · s-1
h = 6.626 x 10-34 J · s

B. 3.3 x 10-8 m

200

What is the correct condensed electron configuration for an atom of As?

A) [Ne] 3s23p6
B) [Xe] 5s25p3
C) [Ne] 3s23p1
D) [Ar] 4s03d104p5
E) [Ar] 4s23d104p3

E) [Ar] 4s23d104p3

200

Which of the following is a common ion?

A) C4+
B) Sr2+
C) F2-
D) Na-
E) He+

B) Sr2+

200

What type of orbital is being shown in this picture?
A) s
B) p
C) d
D) f

D) f

300

Convert 12.5 kilometers per second (km/s) to meters per year (m/yr).

A) 3.94 x 108 m/yr
B) 3.94 x 1012 m/yr
C) 3.94 x 107 m/yr
D) 3.94 x 1011 m/yr
E) 3.94 x 1010 m/yr


D) 3.94 x 1011 meters per year

300

Which transition in a hydrogen atom will cause an emission of the shortest wavelength photon?
A. 𝑛initial = 5 to 𝑛final = 3
B. 𝑛initial = 4 to 𝑛final = 3
C. 𝑛initial = 4 to 𝑛final = 2
D. 𝑛initial = 3 to 𝑛final = 2
E. 𝑛initial = 3 to 𝑛final = 1

E) 𝑛initial = 3 to 𝑛final = 1 

300

Orbitals are designated by letters that correspond to increasing values of the angular momentum number. Which list shows the correct order of these subshells?


A) s, p, f, d
B) s, p, d, f
C) n, l, ml, ms
D) n, l, m1, m2
E) d, f, p, s

B) s, p, d, f

300

Which set of quantum numbers contains Bismuth (Z = 83)'s highest energy electron?

A) n = 6, l = 2, ml = 0, ms = 1/2+
B) n = 6, l = 1, ml = -1, ms = 1/2-
C) n = 7, l = 0, ml = 0, ms = 1/2+
D) n = 5, l = 3, ml = 2, ms = 1/2-
E) n = 7, l = 4, ml = 3, ms = 1/2-

B) n = 6, l = 1, ml = -1, ms = 1/2-

300

How many electrons in an atom can have the quantum numbers n = 3, l = 2?

A. 4
B. 5
C. 10
D. 12
E. 18

C. 10

400

Humans require an average of 13 mg of iron (Z = 26) daily in order to survive. The density that iron is held in many foods is 1.9 g/mL. Given that, how many mL of iron does a human require daily?

A. 0.0068 mL
B. 0.068 mL
C. 6.8 mL
D. 0.00068 mL
E. 25 mL

A. 0.0068 mL

400

A microwave used in medical imaging emits waves with a wavelength of 3.00 x 10-2 m. What is the energy of a single photon from this wave?

A) 6.63 x 10-24 J
B) 1.99 x 10-25 J
C) 1.99 x 10-24 J
D) 1.99 x 10-19 J
E) 1.99 x 10-23 J

c = 2.998 x 108 m · s-1
h = 6.626 x 10-34 J · s

A) 6.63 x 10-24 J

400

Which of the following are isotopes of each other?

ElementProtonsNeutronsElectrons
A232423
B242324
C252725
D232422
E242224
 
 
 
 

D. B and E

400

The atomic radius of chlorine (Z = 17) is smaller than the atomic radius of sodium (Z = 11) primarily because chlorine experiences which of the following?

A. A greater effective nuclear charge
B. A higher principal quantum number for its valence electrons
C. Increased electron-electron repulsion in the valence shell
D. A lower effective nuclear charge 

A. A greater effective nuclear charge

400

Which of the following sets of quantum number configurations represents a valid electron?

A. n = 1, l = 2 ml = 0, ms = 1/2-
B. n = 3 l = 0 ml = 1, ms = 1/2+
C. n = 2, l = 1, ml = -1, ms = 1/2-
D. n = 2, l = -1, ml = 0, ms = 1/2-
E. n = 3, l = 2, ml = -3, ms = 1/2+

C. n = 2, l = 1, ml = -1, ms = 1/2-

500

Convert 4.2 miles to football fields using dimensional analysis. You must show your work.

1 Football Field = 91.44 meters
1 meter  = 39.37 inches
1 mile = 16000 decimeters

74 football fields.

500

Blue light has a wavelength of 450. nm.
 a) Convert wavelength to meters.
 b) Calculate the energy of one photon.

c = 2.998 x 108 m · s-1
h = 6.626 x 10-34 J · s

A) 4.50 E-7 m 

B) 4.42 E-19 J

500

Elements often form ions when it becomes favorable towards stability. These groups often have household names to classify this phenomenon.

A) Identify the periodic table group of elements that form a 1+ cation

B) Identify the periodic table group of elements that form a 2- anion.

C) Identify the periodic table group of elements that can form ions only under extreme conditions.

A) Alkali metals
B) Chalcogens
C) Noble gases

500

Complete the following table.

Nuclide SymbolAtomic NumberMass NumberNumber of ProtonsNumber of NeutronsNumber of ElectronsCharge
7934Se-2??????


Nuclide SymbolAtomic NumberMass NumberNumber of ProtonsNumber of NeutronsNumber of ElectronsCharge
7934Se-23479344536 (charge 2-)
500

A mysterious, radiation emitting atom is discovered in a patient's body. It exhibits patterns similar to period 5 elements. It's ground state has 5 unpaired electrons in the same principal energy level, and its highest-energy electron has a ml of 2+.


A) Identify the element.
B) Draw the condensed electron configuration.

A) Technetium
B) [Kr] 4d5 5s2

M
e
n
u