Question 1

Which of the following atoms has a core charge of +6?

Accepted Answer

A)  B 
B)  C 
C)  N 
D)  Si 
E)  S 
A)  B 
B)  C 
C)  N 
D)  Si 
E)  S E

Question 2

Arrange the following elements in order of increasing first ionization energy:

Ne, Na, Mg

Accepted Answer

A)  Ne < Na < Mg 
B)  Na < Mg < Ne 
C)  Ne < Mg < Na 
D)  Mg < Ne < Na 
E)  Na < Ne < Mg 
A)  Ne < Na < Mg 
B)  Na < Mg < Ne 
C)  Ne < Mg < Na 
D)  Mg < Ne < Na 
E)  Na < Ne < Mg B

Question 3

If green light has a frequency of 5.0 x 1014 s-1, what is the wavelength (in meters) of this light?

Accepted Answer

A)  6.7 x 10-24 
B)  2.0 x 10-15 
C)  6.0 x 10-7 
D)  3.0 x 108 
E)  none of the above 
A)  6.7 x 10-24 
B)  2.0 x 10-15 
C)  6.0 x 10-7 
D)  3.0 x 108 
E)  none of the above C

Question 4

O2 molecules can dissociate to form O atoms by absorbing electromagnetic radiation. If it takes 498 kJ to dissociate one mole of O2 molecules to form two moles of O atoms, what is the frequency of the light that would have just enough energy to decompose a single O2 molecule into O atoms?

Accepted Answer

A)  1.25 x 1015 s-1 
B)  8.27 x 10-19 s-1 
C)  7.52 x 1038 s-1 
D)  8.0 x 10-16 s-1 
E)  5.72 x 1016 s-1 
A)  1.25 x 1015 s-1 
B)  8.27 x 10-19 s-1 
C)  7.52 x 1038 s-1 
D)  8.0 x 10-16 s-1 
E)  5.72 x 1016 s-1

Question 5

How do Photoelectron spectroscopy experiments differ from experiments used to obtain first ionization energies?

Accepted Answer

Experiments to obtain first ionization e

Question 6

Construct a shell model for calcium, Ca, like Figure 3.9 in the text.

Accepted Answer

Calcium has a nuclear charge o

Question 7

What is the wavelength in centimeters of light that has a frequency of 2.33 x 1015 s-1?

Accepted Answer

A)  6.99 x 1025 cm 
B)  7.77 x 104 cm 
C)  1.290 x 103 cm 
D)  1.29 x 10-5 cm 
E)  none of the above 
A)  6.99 x 1025 cm 
B)  7.77 x 104 cm 
C)  1.290 x 103 cm 
D)  1.29 x 10-5 cm 
E)  none of the above

Question 8

How many electrons can be placed in a 3d orbital?

Accepted Answer

A)  2 
B)  6 
C)  8 
D)  10 
E)  18 
A)  2 
B)  6 
C)  8 
D)  10 
E)  18

Question 9

Calculate the maximum number of electrons that can fit into the n = 4 shell of orbitals.

Accepted Answer

A)  6 
B)  8 
C)  18 
D)  16 
E)  32 
A)  6 
B)  8 
C)  18 
D)  16 
E)  32

Question 10

Which of the following subshells would be filled first when electrons are added to a gold atom?

Accepted Answer

A)  4f 
B)  5d 
C)  6s 
D)  6p 
E)  6d 
A)  4f 
B)  5d 
C)  6s 
D)  6p 
E)  6d

Question 11

A single atom of element 109 has been synthesized. Predict the electronic configuration of this element. Which of the following elements would 109 most resemble?

Accepted Answer

A)  Ta 
B)  Re 
C)  Ir 
D)  Au 
E)  Tl 
A)  Ta 
B)  Re 
C)  Ir 
D)  Au 
E)  Tl

Question 12

A single atom of element 114 was recently synthesized. Predict the electronic configuration of this element. Which of the following elements would 114 most resemble?

Accepted Answer

A)  Au 
B)  Hg 
C)  Tl 
D)  Pb 
E)  Po 
A)  Au 
B)  Hg 
C)  Tl 
D)  Pb 
E)  Po

Question 13

Give the abbreviated electron configuration of platinum, Pt.

Accepted Answer

The answer of Give the abbreviated electron configuration of platinum,...

Question 14

Which of the following would have the electron configuration:

1s2 2s2 2p6 3s2 3p6 3d4

Accepted Answer

A)  Ca2+ 
B)  Cr2+ 
C)  Fe2+ 
D)  Ti2+ 
E)  none of these 
A)  Ca2+ 
B)  Cr2+ 
C)  Fe2+ 
D)  Ti2+ 
E)  none of these

Question 15

Arrange the following ions in order of decreasing ionic radius.

Accepted Answer

A)  F- > Cl- > Br- > Na+ > Li+ 
B)  Na+ > Li+ > F- > Cl- > Br- 
C)  Br- > Cl- > F- > Li+ > Na+  
D)  Br- > Cl- > F- > Na+ > Li+ 
E)  Br-> Cl- >Na+ > F- > Li+ 
A)  F- > Cl- > Br- > Na+ > Li+ 
B)  Na+ > Li+ > F- > Cl- > Br- 
C)  Br- > Cl- > F- > Li+ > Na+  
D)  Br- > Cl- > F- > Na+ > Li+ 
E)  Br-> Cl- >Na+ > F- > Li+

Question 16

Orbitals for which l = 1 are described by which of the following symbols?

Accepted Answer

A)  s 
B)  p 
C)  d 
D)  f 
E)  g 
A)  s 
B)  p 
C)  d 
D)  f 
E)  g

Question 17

First ionization energy has been defined as the energy required to remove the most loosely held electron from an electrically neutral atom. Second ionization energy is the minimum energy required to remove an electron from a +1 cation (from an atom that has already lost its first electron). In the same way third ionization energy is the minimum energy to remove an electron from a +2 cation (from an atom that has lost two electrons).
Below is a table of first, second, third and fourth ionization energies for Na, Mg and Al. Explain this data for the magnesium atom in terms of its electron configuration.

Accepted Answer

The first and second electrons are relat

Question 18

Which of the following wavelengths or frequencies of light will have photons with the highest energy?

Accepted Answer

A)  450 nm 
B)  4.5 x 1014 Hz 
C)  600 nm 
D)  5.0 x 1014 Hz 
E)  none of these 
A)  450 nm 
B)  4.5 x 1014 Hz 
C)  600 nm 
D)  5.0 x 1014 Hz 
E)  none of these

Question 19

How would you expect the first ionization energy of K to compare to that of Ar?

Accepted Answer

A) K > Ar B) K = Ar C) K < Ar D) First ionization energies for an atom can vary E) Ar does not ionize A) K > Ar B) K = Ar C) K < Ar D) First ionization energies for an atom can vary E) Ar does not ionize

Question 20

Photochemistry is when light causes a chemical reaction to occur. A simple example is when light breaks a Cl2 molecule apart into 2 Cl atoms. If the energy required to break apart a mole of chlorine molecules is 243 kJ, a photon of what frequency will break apart a single Cl2 molecule?

Accepted Answer

A)  6.1 x 1014 s-1 
B)  4.0 x 10-19 s-1 
C)  3.7 x 1035 s-1 
D)  5.2 x 1015 s-1 
E)  none of the above. 
A)  6.1 x 1014 s-1 
B)  4.0 x 10-19 s-1 
C)  3.7 x 1035 s-1 
D)  5.2 x 1015 s-1 
E)  none of the above.

Which of the following atoms has a core charge of +6?

Arrange the following elements in order of increasing first ionization energy: Ne, Na, Mg

If green light has a frequency of 5.0 x 10¹⁴ s^-1, what is the wavelength (in meters) of this light?

O₂ molecules can dissociate to form O atoms by absorbing electromagnetic radiation. If it takes 498 kJ to dissociate one mole of O₂ molecules to form two moles of O atoms, what is the frequency of the light that would have just enough energy to decompose a single O₂ molecule into O atoms?

How do Photoelectron spectroscopy experiments differ from experiments used to obtain first ionization energies?

Construct a shell model for calcium, Ca, like Figure 3.9 in the text.

What is the wavelength in centimeters of light that has a frequency of 2.33 x 10¹⁵ s^-1?

How many electrons can be placed in a 3d orbital?

Calculate the maximum number of electrons that can fit into the n = 4 shell of orbitals.

Which of the following subshells would be filled first when electrons are added to a gold atom?

A single atom of element 109 has been synthesized. Predict the electronic configuration of this element. Which of the following elements would 109 most resemble?

A single atom of element 114 was recently synthesized. Predict the electronic configuration of this element. Which of the following elements would 114 most resemble?

Give the abbreviated electron configuration of platinum, Pt.

Which of the following would have the electron configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁴

Arrange the following ions in order of decreasing ionic radius.

Orbitals for which l = 1 are described by which of the following symbols?

Which of the following wavelengths or frequencies of light will have photons with the highest energy?

How would you expect the first ionization energy of K to compare to that of Ar?

Photochemistry is when light causes a chemical reaction to occur. A simple example is when light breaks a Cl₂ molecule apart into 2 Cl atoms. If the energy required to break apart a mole of chlorine molecules is 243 kJ, a photon of what frequency will break apart a single Cl₂ molecule?

Elements Compounds

The Mole

The Covalent Bond

Ionic and Metallic Bonds

Gases

Making and Breaking of Bonds

Liquids and Solutions

Solids

An Introduction to Kinetics and Equilibrium

Acids and Bases

Oxidation-Reduction Reactions

Chemical Thermodynamics

Kinetics

Nuclear Chemistry

Organic Chemistry

Filters

Exam 3: Structure of the Atom

Which of the following atoms has a core charge of +6?

Arrange the following elements in order of increasing first ionization energy: Ne, Na, Mg

If green light has a frequency of 5.0 x 1014 s-1, what is the wavelength (in meters) of this light?

O2 molecules can dissociate to form O atoms by absorbing electromagnetic radiation. If it takes 498 kJ to dissociate one mole of O2 molecules to form two moles of O atoms, what is the frequency of the light that would have just enough energy to decompose a single O2 molecule into O atoms?

How do Photoelectron spectroscopy experiments differ from experiments used to obtain first ionization energies?

Construct a shell model for calcium, Ca, like Figure 3.9 in the text.

What is the wavelength in centimeters of light that has a frequency of 2.33 x 1015 s-1?

How many electrons can be placed in a 3d orbital?

Calculate the maximum number of electrons that can fit into the n = 4 shell of orbitals.

Which of the following subshells would be filled first when electrons are added to a gold atom?

A single atom of element 109 has been synthesized. Predict the electronic configuration of this element. Which of the following elements would 109 most resemble?

A single atom of element 114 was recently synthesized. Predict the electronic configuration of this element. Which of the following elements would 114 most resemble?

Give the abbreviated electron configuration of platinum, Pt.

Which of the following would have the electron configuration: 1s2 2s2 2p6 3s2 3p6 3d4

Arrange the following ions in order of decreasing ionic radius.

Orbitals for which l = 1 are described by which of the following symbols?

Which of the following wavelengths or frequencies of light will have photons with the highest energy?

How would you expect the first ionization energy of K to compare to that of Ar?

Photochemistry is when light causes a chemical reaction to occur. A simple example is when light breaks a Cl2 molecule apart into 2 Cl atoms. If the energy required to break apart a mole of chlorine molecules is 243 kJ, a photon of what frequency will break apart a single Cl2 molecule?

Elements Compounds

The Mole

The Covalent Bond

Ionic and Metallic Bonds

Gases

Making and Breaking of Bonds

Liquids and Solutions

Solids

An Introduction to Kinetics and Equilibrium

Acids and Bases

Oxidation-Reduction Reactions

Chemical Thermodynamics

Kinetics

Nuclear Chemistry

Organic Chemistry

Filters

If green light has a frequency of 5.0 x 10¹⁴ s^-1, what is the wavelength (in meters) of this light?

O₂ molecules can dissociate to form O atoms by absorbing electromagnetic radiation. If it takes 498 kJ to dissociate one mole of O₂ molecules to form two moles of O atoms, what is the frequency of the light that would have just enough energy to decompose a single O₂ molecule into O atoms?

What is the wavelength in centimeters of light that has a frequency of 2.33 x 10¹⁵ s^-1?

Which of the following would have the electron configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁴

Photochemistry is when light causes a chemical reaction to occur. A simple example is when light breaks a Cl₂ molecule apart into 2 Cl atoms. If the energy required to break apart a mole of chlorine molecules is 243 kJ, a photon of what frequency will break apart a single Cl₂ molecule?