Question 1

Which of the following electron transitions in the hydrogen atom result in emission of light with the highest frequency?

Accepted Answer

A) n = 6 to n = 2 
B) n = 3 to n = 2 
C) n = 2 to n = 3 
D) n = 2 to n = 6 
E) All of these emit light with the same frequency. 
A) n = 6 to n = 2 
B) n = 3 to n = 2 
C) n = 2 to n = 3 
D) n = 2 to n = 6 
E) All of these emit light with the same frequency.

Question 2

A fluorine atom is larger than a carbon atom because fluorine has more protons and more electrons than carbon.

Accepted Answer

A) True 
 B)False

Question 3

The maximum number of electrons in the 3rd principal energy level is 28.

Accepted Answer

A) True 
 B)False

Question 4

The abbreviated electron configuration [Ne] applies to all of the following species except:

Accepted Answer

A) Cl− 
B) N3− 
C) O2− 
D) Mg2+ 
E) F− 
A) Cl− 
B) N3− 
C) O2− 
D) Mg2+ 
E) F−

Question 5

Select the pair that has the larger atom or ion listed first.

Accepted Answer

A) P, P3− 
B) Na+, Na 
C) S, S2- 
D) Br-, Kr 
E) Mg2+, Mg 
A) P, P3− 
B) Na+, Na 
C) S, S2- 
D) Br-, Kr 
E) Mg2+, Mg

Question 6

There is one unpaired electron in a phosphorus atom.

Accepted Answer

A) True 
 B)False

Question 7

How many unpaired electrons are in the orbital diagram for sulfur?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3 
E) 4 
A) 0 
B) 1 
C) 2 
D) 3 
E) 4

Question 8

The valence level and the number of valence electrons, respectively, for arsenic are:

Accepted Answer

A) 3 and 3 
B) 3 and 5 
C) 4 and 3 
D) 4 and 5 
E) 4 and 2 
A) 3 and 3 
B) 3 and 5 
C) 4 and 3 
D) 4 and 5 
E) 4 and 2

Question 9

The following orbital diagram corresponds to the element ________.

Accepted Answer

A) P 
B) Si 
C) S 
D) Se 
E) Cl 
A) P 
B) Si 
C) S 
D) Se 
E) Cl

Question 10

Rank the following types of electromagnetic radiation from shortest wavelength to longest wavelength: visible, ultraviolet, microwave, infrared, x-ray.

Accepted Answer

A) x-ray < visible < ultraviolet < infrared < microwave 
B) x-ray < ultraviolet < visible < microwave < infrared 
C) x-ray < ultraviolet < visible < infrared < microwave 
D) infrared < microwave < ultraviolet < visible < x-ray 
E) microwave < infrared < visible < ultraviolet < x-ray 
A) x-ray < visible < ultraviolet < infrared < microwave 
B) x-ray < ultraviolet < visible < microwave < infrared 
C) x-ray < ultraviolet < visible < infrared < microwave 
D) infrared < microwave < ultraviolet < visible < x-ray 
E) microwave < infrared < visible < ultraviolet < x-ray

Question 11

Which of the following statements regarding the Bohr model of the hydrogen atom is incorrect?

Accepted Answer

A) Bohr's model shows the electron circling the nucleus in fixed orbits. 
B) In Bohr's model, electrons could exist between orbits. 
C) In Bohr's model, when an electron absorbs energy, it can move to a higher-energy orbit. 
D) In Bohr's model, when an electron emits energy, it can move to a lower-energy orbit. 
E) In Bohr's model, n = 1 is the lowest energy orbit. 
A) Bohr's model shows the electron circling the nucleus in fixed orbits. 
B) In Bohr's model, electrons could exist between orbits. 
C) In Bohr's model, when an electron absorbs energy, it can move to a higher-energy orbit. 
D) In Bohr's model, when an electron emits energy, it can move to a lower-energy orbit. 
E) In Bohr's model, n = 1 is the lowest energy orbit.

Question 12

If a laser light is compose of photons each with an energy of 4.58 × 10−19 J, what is the photon energy of this light in units of nanometers, nm? Report your answer with correct significant figures and correct units.

Accepted Answer

To convert the energy of a photon from j

Question 13

The abbreviated electron configuration [Kr] applies to all of the following species except:

Accepted Answer

A) Br- 
B) As3- 
C) Se2- 
D) Sr2+ 
E) Rb- 
A) Br- 
B) As3- 
C) Se2- 
D) Sr2+ 
E) Rb-

Question 14

The electron configuration 1s22s22p6 applies to all of the following species except:

Accepted Answer

A) Ne 
B) F− 
C) O2− 
D) Na+ 
E) Ca2+ 
A) Ne 
B) F− 
C) O2− 
D) Na+ 
E) Ca2+

Question 15

When an electron moves directly from the n = 3 to the n = 1 orbit, it emits two photons.

Accepted Answer

A) True 
 B)False

Question 16

How many unpaired electrons are in the orbital diagram for carbon?

Accepted Answer

A) 0 
B) 2 
C) 4 
D) 6 
E) 8 
A) 0 
B) 2 
C) 4 
D) 6 
E) 8

Question 17

Which element has the abbreviated ground-state electron configuration [Ar]4s23d5?

Accepted Answer

A) Mn 
B) Cr 
C) V 
D) Fe 
E) Cl 
A) Mn 
B) Cr 
C) V 
D) Fe 
E) Cl

Question 18

Rank the following types of electromagnetic radiation from lowest energy to highest energy: visible, ultraviolet, microwave, infrared, x-ray.

Accepted Answer

A) x-ray < visible < ultraviolet < infrared < microwave 
B) x-ray < ultraviolet < visible < microwave < infrared 
C) x-ray < ultraviolet < visible < infrared < microwave 
D) infrared < microwave < ultraviolet < visible < x-ray 
E) microwave < infrared < visible < ultraviolet < x-ray 
A) x-ray < visible < ultraviolet < infrared < microwave 
B) x-ray < ultraviolet < visible < microwave < infrared 
C) x-ray < ultraviolet < visible < infrared < microwave 
D) infrared < microwave < ultraviolet < visible < x-ray 
E) microwave < infrared < visible < ultraviolet < x-ray

Question 19

Elements that have five electrons in the highest-energy p sublevel in their ground state are called ________.

Accepted Answer

A) alkali metals 
B) alkaline earth metals 
C) halogens 
D) noble gases 
E) transition metals 
A) alkali metals 
B) alkaline earth metals 
C) halogens 
D) noble gases 
E) transition metals

Question 20

If the energy of a photon of light is 3.37 × 10−19 J, what is the frequency of the light?

Accepted Answer

A) 1.12 × 10−27 s−1 
B) 8.90 × 1026 s−1 
C) 5.09 × 1014 s−1 
D) 6.70 × 10−44 s−1 
E) 1.01 × 10−10 s−1 
A) 1.12 × 10−27 s−1 
B) 8.90 × 1026 s−1 
C) 5.09 × 1014 s−1 
D) 6.70 × 10−44 s−1 
E) 1.01 × 10−10 s−1

Which of the following electron transitions in the hydrogen atom result in emission of light with the highest frequency?

A fluorine atom is larger than a carbon atom because fluorine has more protons and more electrons than carbon.

The maximum number of electrons in the 3^rd principal energy level is 28.

The abbreviated electron configuration [Ne] applies to all of the following species except:

Select the pair that has the larger atom or ion listed first.

There is one unpaired electron in a phosphorus atom.

How many unpaired electrons are in the orbital diagram for sulfur?

The valence level and the number of valence electrons, respectively, for arsenic are:

The following orbital diagram corresponds to the element ________.

Rank the following types of electromagnetic radiation from shortest wavelength to longest wavelength: visible, ultraviolet, microwave, infrared, x-ray.

Which of the following statements regarding the Bohr model of the hydrogen atom is incorrect?

If a laser light is compose of photons each with an energy of 4.58 × 10⁻¹⁹ J, what is the photon energy of this light in units of nanometers, nm? Report your answer with correct significant figures and correct units.

The abbreviated electron configuration [Kr] applies to all of the following species except:

The electron configuration 1s²2s²2p⁶ applies to all of the following species except:

When an electron moves directly from the n = 3 to the n = 1 orbit, it emits two photons.

How many unpaired electrons are in the orbital diagram for carbon?

Which element has the abbreviated ground-state electron configuration [Ar]4s²3d⁵?

Rank the following types of electromagnetic radiation from lowest energy to highest energy: visible, ultraviolet, microwave, infrared, x-ray.

Elements that have five electrons in the highest-energy p sublevel in their ground state are called ________.

If the energy of a photon of light is 3.37 × 10⁻¹⁹ J, what is the frequency of the light?

Matter and Energy

Atoms, Ions, and the Periodic Table

Chemical Compounds

Chemical Composition

Chemical Reactions and Equations

Quantities in Chemical Reactions

Chemical Bonding

The Gaseous State

The Liquid and Solid States

Solutions

Reaction Rates and Chemical Equilibrium

Acids and Bases

Oxidation-Reduction Reactions

Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Exam 7: Electron Structure of the Atom

Which of the following electron transitions in the hydrogen atom result in emission of light with the highest frequency?

A fluorine atom is larger than a carbon atom because fluorine has more protons and more electrons than carbon.

The maximum number of electrons in the 3rd principal energy level is 28.

The abbreviated electron configuration [Ne] applies to all of the following species except:

Select the pair that has the larger atom or ion listed first.

There is one unpaired electron in a phosphorus atom.

How many unpaired electrons are in the orbital diagram for sulfur?

The valence level and the number of valence electrons, respectively, for arsenic are:

The following orbital diagram corresponds to the element ________.

Rank the following types of electromagnetic radiation from shortest wavelength to longest wavelength: visible, ultraviolet, microwave, infrared, x-ray.

Which of the following statements regarding the Bohr model of the hydrogen atom is incorrect?

If a laser light is compose of photons each with an energy of 4.58 × 10−19 J, what is the photon energy of this light in units of nanometers, nm? Report your answer with correct significant figures and correct units.

The abbreviated electron configuration [Kr] applies to all of the following species except:

The electron configuration 1s22s22p6 applies to all of the following species except:

When an electron moves directly from the n = 3 to the n = 1 orbit, it emits two photons.

How many unpaired electrons are in the orbital diagram for carbon?

Which element has the abbreviated ground-state electron configuration [Ar]4s23d5?

Rank the following types of electromagnetic radiation from lowest energy to highest energy: visible, ultraviolet, microwave, infrared, x-ray.

Elements that have five electrons in the highest-energy p sublevel in their ground state are called ________.

If the energy of a photon of light is 3.37 × 10−19 J, what is the frequency of the light?

Matter and Energy

Atoms, Ions, and the Periodic Table

Chemical Compounds

Chemical Composition

Chemical Reactions and Equations

Quantities in Chemical Reactions

Chemical Bonding

The Gaseous State

The Liquid and Solid States

Solutions

Reaction Rates and Chemical Equilibrium

Acids and Bases

Oxidation-Reduction Reactions

Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

The maximum number of electrons in the 3^rd principal energy level is 28.

If a laser light is compose of photons each with an energy of 4.58 × 10⁻¹⁹ J, what is the photon energy of this light in units of nanometers, nm? Report your answer with correct significant figures and correct units.

The electron configuration 1s²2s²2p⁶ applies to all of the following species except:

Which element has the abbreviated ground-state electron configuration [Ar]4s²3d⁵?

If the energy of a photon of light is 3.37 × 10⁻¹⁹ J, what is the frequency of the light?