Question 1

How many orbitals are possible for the n F1F1F1S1F1F1F10 4 shell?

Accepted Answer

A) 4 
B) 9 
C) 16 
D) 25 
E) 36 
A) 4 
B) 9 
C) 16 
D) 25 
E) 36

Question 2

What wavelength of light is required to cause the ejection of photoelectrons with kinetic energies of 5.0   F1F1F1S1F1F1F10J from a calcium surface (F1F1F1S1F1F1F10 F1F1F1S1F1F1F10 4.60   F1F1F1S1F1F1F10J)?

Accepted Answer

A) 485 nm 
B) 390 nm 
C) 308 nm 
D) 632 nm 
E) 480 nm 
A) 485 nm 
B) 390 nm 
C) 308 nm 
D) 632 nm 
E) 480 nm

Question 3

Based on the following graph, which metal will emit the highest energy photoelectron when a photon with a frequency of 3.9   F1F1F1S1F1F1F10Hz is incident on the metal?

Accepted Answer

A) a 
B) b 
C) c 
D) d 
A) a 
B) b 
C) c 
D) d

Question 4

Down a column in the periodic table, the ionization energy ________

Accepted Answer

A) increases because the n quantum number changes. 
B) increases because the   quantum number changes. 
C) decreases because the outer electrons are further from the nucleus. 
D) increases because the atomic number (nuclear charge) increases. 
E) changes little because the outer electrons are all in the same outer shell. 
A) increases because the n quantum number changes. 
B) increases because the   quantum number changes. 
C) decreases because the outer electrons are further from the nucleus. 
D) increases because the atomic number (nuclear charge) increases. 
E) changes little because the outer electrons are all in the same outer shell.

Question 5

What is the energy (E, in J) of a photon from a microwave oven with a frequency of F1F1F1S1F1F1F10 F1F1F1S1F1F1F10 6.0   F1F1F1S1F1F1F10Hz?

Accepted Answer

A) 3.98   F1F1F1S1F1F1F10J 
B) 3.98   F1F1F1S1F1F1F10J 
C) 3.98   F1F1F1S1F1F1F10J 
D) 3.98   F1F1F1S1F1F1F10J 
E) 3.98   F1F1F1S1F1F1F10J 
A) 3.98   F1F1F1S1F1F1F10J 
B) 3.98   F1F1F1S1F1F1F10J 
C) 3.98   F1F1F1S1F1F1F10J 
D) 3.98   F1F1F1S1F1F1F10J 
E) 3.98   F1F1F1S1F1F1F10J

Question 6

Define effective nuclear charge. Use this parameter to rationalize the general trends for atomic size down a group and across a period.

Accepted Answer

Effective nuclear charge (Z_eff) is the actu

Question 7

A light detector based on the photoelectric effect is made with cesium metal. Cesium metal has a work function of 3.40 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F1019 J. What is the longest wavelength of light that one could expect to detect with this device?

Accepted Answer

Question 8

The mathematical description of an electron as a wave was developed by ________

Accepted Answer

A) Bohr. 
B) Heisenberg. 
C) Einstein. 
D) de Broglie. 
E) Schrödinger. 
A) Bohr. 
B) Heisenberg. 
C) Einstein. 
D) de Broglie. 
E) Schrödinger.

Question 9

Which monatomic ion most likely does not exist?

Accepted Answer

A) Al2F1F1F1S1F1F1F10 
B) Mg2F1F1F1S1F1F1F10 
C) CsF1F1F1S1F1F1F10 
D) S2F1F1F1S1F1F1F10 
E) IF1F1F1S1F1F1F10 
A) Al2F1F1F1S1F1F1F10 
B) Mg2F1F1F1S1F1F1F10 
C) CsF1F1F1S1F1F1F10 
D) S2F1F1F1S1F1F1F10 
E) IF1F1F1S1F1F1F10

Question 10

An atom in its ground state absorbs a single photon of light and then relaxes back to the ground state by emitting an infrared photon (1,200 nm) followed by an orange photon (600 nm). What is the wavelength of the photon that was absorbed initially?

Accepted Answer

A) 600 nm 
B) 1,200 nm 
C) 1,800 nm 
D) 900 nm 
E) 400 nm 
A) 600 nm 
B) 1,200 nm 
C) 1,800 nm 
D) 900 nm 
E) 400 nm

Question 11

The electron configuration of a manganese ion (Z F1F1F1S1F1F1F10 25) is [Ar]3d 3. What is the charge on this ion?

Accepted Answer

A) (F1F1F1S1F1F1F107) 
B) (F1F1F1S1F1F1F105) 
C) (F1F1F1S1F1F1F104) 
D) (F1F1F1S1F1F1F103) 
E) (F1F1F1S1F1F1F102) 
A) (F1F1F1S1F1F1F107) 
B) (F1F1F1S1F1F1F105) 
C) (F1F1F1S1F1F1F104) 
D) (F1F1F1S1F1F1F103) 
E) (F1F1F1S1F1F1F102)

Question 12

How many orbitals that have the principal quantum number equal to 3 are there in an atom?

Accepted Answer

A) 2 
B) 4 
C) 9 
D) 16 
E) 18 
A) 2 
B) 4 
C) 9 
D) 16 
E) 18

Question 13

What is the wavelength of a photon emitted by a KrF1F1F1S1F1F1F10 laser with an energy of 3.07   J?

Accepted Answer

A) (F1F1F1S1F1F1F10 F1F1F1S1F1F1F10 224 nm) 
B) (F1F1F1S1F1F1F10 F1F1F1S1F1F1F10 389 nm) 
C) (F1F1F1S1F1F1F10 F1F1F1S1F1F1F10 417 nm) 
D) (F1F1F1S1F1F1F10 F1F1F1S1F1F1F10 647 nm) 
E) (F1F1F1S1F1F1F10 F1F1F1S1F1F1F10 534 nm) 
A) (F1F1F1S1F1F1F10 F1F1F1S1F1F1F10 224 nm) 
B) (F1F1F1S1F1F1F10 F1F1F1S1F1F1F10 389 nm) 
C) (F1F1F1S1F1F1F10 F1F1F1S1F1F1F10 417 nm) 
D) (F1F1F1S1F1F1F10 F1F1F1S1F1F1F10 647 nm) 
E) (F1F1F1S1F1F1F10 F1F1F1S1F1F1F10 534 nm)

Question 14

Provide three potential quantum numbers for the following orbitals.
a) 3d
b) 4s
c) 2p

Accepted Answer

a) n @#IMG-DLM& F1F1F1S1F1F1F103, @#IMG-DLM& 2, m @#IMG-DLM& can @#IMG-DLM& F1F

Question 15

Which of the following occurs only in discrete (quantized) increments?

Accepted Answer

A) the speed a car drives on the interstate 
B) the altitude at which an airplane flies 
C) time 
D) the level of water in a sink 
E) money 
A) the speed a car drives on the interstate 
B) the altitude at which an airplane flies 
C) time 
D) the level of water in a sink 
E) money

Question 16

The energy of a one-electron atom is given by   where Z is the atomic number of the element. Which of the following one-electron ions has the largest ionization energy?

Accepted Answer

A) Li2F1F1F1S1F1F1F10 
B) Be3F1F1F1S1F1F1F10 
C) HeF1F1F1S1F1F1F10 
D) B4F1F1F1S1F1F1F10 
E) C5F1F1F1S1F1F1F10 
A) Li2F1F1F1S1F1F1F10 
B) Be3F1F1F1S1F1F1F10 
C) HeF1F1F1S1F1F1F10 
D) B4F1F1F1S1F1F1F10 
E) C5F1F1F1S1F1F1F10

Question 17

The Fraunhofer lines are evidence that ________

Accepted Answer

A) atoms contain nuclei. 
B) atoms contain electrons. 
C) waves interfere constructively. 
D) elements absorb light. 
E) elements emit light. 
A) atoms contain nuclei. 
B) atoms contain electrons. 
C) waves interfere constructively. 
D) elements absorb light. 
E) elements emit light.

Question 18

The atomic radius of germanium (Z   F1F1F1S1F1F1F1032) is smaller than the atomic radius of potassium (Z   F1F1F1S1F1F1F1019) because of ________

Accepted Answer

A) a change in the n quantum number. 
B) an increase in the effective nuclear charge. 
C) the fact that p and d orbitals have the same orbital penetration. 
D) a decrease in the effective nuclear charge. 
E) germanium having 32 rather than 19 electrons. 
A) a change in the n quantum number. 
B) an increase in the effective nuclear charge. 
C) the fact that p and d orbitals have the same orbital penetration. 
D) a decrease in the effective nuclear charge. 
E) germanium having 32 rather than 19 electrons.

Question 19

What color will a red object appear when it is seen through a filter with the absorption spectrum shown below?

Accepted Answer

A) blue 
B) yellow 
C) red 
D) black 
E) white 
A) blue 
B) yellow 
C) red 
D) black 
E) white

Question 20

Which transition metal ion has no d electrons?

Accepted Answer

A) Ti2F1F1F1S1F1F1F10 
B) Fe3F1F1F1S1F1F1F10 
C) Cr3F1F1F1S1F1F1F10 
D) Mn7F1F1F1S1F1F1F10 
E) Cu2F1F1F1S1F1F1F10 
A) Ti2F1F1F1S1F1F1F10 
B) Fe3F1F1F1S1F1F1F10 
C) Cr3F1F1F1S1F1F1F10 
D) Mn7F1F1F1S1F1F1F10 
E) Cu2F1F1F1S1F1F1F10

Exam 7: A Quantum Model of Atoms: Waves and Particles

How many orbitals are possible for the n  4 shell?

What wavelength of light is required to cause the ejection of photoelectrons with kinetic energies of 5.0 J from a calcium surface (  4.60 J)?

Based on the following graph, which metal will emit the highest energy photoelectron when a photon with a frequency of 3.9 Hz is incident on the metal?

Down a column in the periodic table, the ionization energy ________

What is the energy (E, in J) of a photon from a microwave oven with a frequency of   6.0 Hz?

Define effective nuclear charge. Use this parameter to rationalize the general trends for atomic size down a group and across a period.

A light detector based on the photoelectric effect is made with cesium metal. Cesium metal has a work function of 3.40  1019 J. What is the longest wavelength of light that one could expect to detect with this device?

The mathematical description of an electron as a wave was developed by ________

Which monatomic ion most likely does not exist?

An atom in its ground state absorbs a single photon of light and then relaxes back to the ground state by emitting an infrared photon (1,200 nm) followed by an orange photon (600 nm). What is the wavelength of the photon that was absorbed initially?

The electron configuration of a manganese ion (Z  25) is [Ar]3d 3. What is the charge on this ion?

How many orbitals that have the principal quantum number equal to 3 are there in an atom?

What is the wavelength of a photon emitted by a Kr laser with an energy of 3.07 J?

Provide three potential quantum numbers for the following orbitals. a) 3d b) 4s c) 2p

Which of the following occurs only in discrete (quantized) increments?

The energy of a one-electron atom is given by where Z is the atomic number of the element. Which of the following one-electron ions has the largest ionization energy?

The Fraunhofer lines are evidence that ________

The atomic radius of germanium (Z 32) is smaller than the atomic radius of potassium (Z 19) because of ________

What color will a red object appear when it is seen through a filter with the absorption spectrum shown below?

Which transition metal ion has no d electrons?

Matter and Energy: The Origin of the Universe

Atoms, Ions, and Molecules: Matter Starts Here

Stoichiometry: Mass, Formulas, and Reactions

Solution Chemistry: The Hydrosphere

Thermochemistry: Energy Changes in Reactions

Properties of Gases: The Air We Breathe

Chemical Bonds: What Makes a Gas a Greenhouse Gas

Molecular Geometry: Shape Determines Function

Intermolecular Forces: The Uniqueness of Water

Solutions: Properties and Behavior

Solids: Crystals, Alloys, and Polymers

Chemical Kinetics: Reactions in the Atmosphere

Chemical Equilibrium: How Much Product Does a Reaction Really Make

Acidbase Equilibria: Proton Transfer in Biological Systems

Additional Aqueous Equilibria: Chemistry and the Oceans

Thermodynamics: Spontaneous and Nonspontaneous Reactions and Processes

Electrochemistry: The Quest for Clean Energy

Nuclear Chemistry: Applications to Energy and Medicine

Organic and Biological Molecules: the Compounds of Life

The Main Group Elements: Life and the Periodic Table

Transition Metals: Biological and Medical Applications

Filters

A light detector based on the photoelectric effect is made with cesium metal. Cesium metal has a work function of 3.40  10^¹⁹ J. What is the longest wavelength of light that one could expect to detect with this device?

The electron configuration of a manganese ion (Z  25) is [Ar]3d ³. What is the charge on this ion?

What is the wavelength of a photon emitted by a Kr^ laser with an energy of 3.07 J?