Question 1

Nitrogen has _____ valence electrons.

Accepted Answer

A)  two 
B)  three 
C)  four 
D)  five 
A)  two 
B)  three 
C)  four 
D)  five

Question 2

Which configuration describes the electron configuration of iron?

Accepted Answer

A)  [Ar] 4s23d6 
B)  [Ar] 4s24p6 
C)  [Kr] 
D)  1s22s22p63d6 
A)  [Ar] 4s23d6 
B)  [Ar] 4s24p6 
C)  [Kr] 
D)  1s22s22p63d6

Question 3

An atom lost two valence electrons,resulting in a configuration of 1s22s22p6.The identity of this ion is:

Accepted Answer

A)  S2+. 
B)  S2-. 
C)  P3-. 
D)  Mg2+. 
A)  S2+. 
B)  S2-. 
C)  P3-. 
D)  Mg2+.

Question 4

Which statement is NOT correct?

Accepted Answer

A)  The s sublevel contains one orbital and can hold a maximum of 2 electrons. 
B)  The p sublevel contains six orbitals and can hold a maximum of 6 electrons. 
C)  The d sublevel contains five orbitals and can hold a maximum of 10 electrons. 
D)  The f sublevel contains seven orbitals and can hold a maximum of 14 electrons. 
A)  The s sublevel contains one orbital and can hold a maximum of 2 electrons. 
B)  The p sublevel contains six orbitals and can hold a maximum of 6 electrons. 
C)  The d sublevel contains five orbitals and can hold a maximum of 10 electrons. 
D)  The f sublevel contains seven orbitals and can hold a maximum of 14 electrons.

Question 5

What is the wavelength of a photon of light with a frequency of 5.00 × 1014 Hz?

Accepted Answer

A)  600 nm 
B)  1.66 × 106 nm 
C)  6.00 × 10-7 nm 
D)  550 nm 
A)  600 nm 
B)  1.66 × 106 nm 
C)  6.00 × 10-7 nm 
D)  550 nm

Question 6

The electronic configuration for aluminum is 1s22s22p63s23p1.The valence configuration for sulfur is:

Accepted Answer

A)  1s2. 
B)  2s22p6. 
C)  3p2. 
D)  3s23p1. 
A)  1s2. 
B)  2s22p6. 
C)  3p2. 
D)  3s23p1.

Question 7

Which pair has the same number of electrons?

Accepted Answer

A)  Na+ and O 
B)  O and F- 
C)  Na+ and Ne 
D)  Cl- and F 
A)  Na+ and O 
B)  O and F- 
C)  Na+ and Ne 
D)  Cl- and F

Question 8

Which statement is CORRECT?

Accepted Answer

A)  The s sublevel contains two orbitals and can hold a maximum of 2 electrons. 
B)  The p sublevel contains three orbitals and can hold a maximum of 6 electrons. 
C)  The d sublevel contains ten orbitals and can hold a maximum of 10 electrons. 
D)  The f sublevel contains seven orbitals and can hold a maximum of 7 electrons. 
A)  The s sublevel contains two orbitals and can hold a maximum of 2 electrons. 
B)  The p sublevel contains three orbitals and can hold a maximum of 6 electrons. 
C)  The d sublevel contains ten orbitals and can hold a maximum of 10 electrons. 
D)  The f sublevel contains seven orbitals and can hold a maximum of 7 electrons.

Question 9

What is the frequency of a photon of light with a wavelength of 615 nm?

Accepted Answer

A)  1.85 × 1011 Hz 
B)  4.88 × 1014 Hz 
C)  2.05 × 10-6 Hz 
D)  3.58 × 10-5 Hz 
A)  1.85 × 1011 Hz 
B)  4.88 × 1014 Hz 
C)  2.05 × 10-6 Hz 
D)  3.58 × 10-5 Hz

Question 10

Within an energy level,the _____ orbital is the LOWEST in energy.

Accepted Answer

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

Nitrogen has _____ valence electrons.

Which configuration describes the electron configuration of iron?

An atom lost two valence electrons,resulting in a configuration of 1s²2s²2p⁶.The identity of this ion is:

Which statement is NOT correct?

What is the wavelength of a photon of light with a frequency of 5.00 × 10¹⁴ Hz?

The electronic configuration for aluminum is 1s²2s²2p⁶3s²3p¹.The valence configuration for sulfur is:

Which pair has the same number of electrons?

Which statement is CORRECT?

What is the frequency of a photon of light with a wavelength of 615 nm?

Within an energy level,the _____ orbital is the LOWEST in energy.

Foundations

Measurement

Atoms

Chemical Bonds Compounds

Chemical Reactions

Mass Stoichiometry

Energy

Covalent Bonding and Molecules

Solids, Liquids, and Gases

Solutions

Acids Bases

Reaction Rates Equilibrium

Oxidation-Reduction Reactions

Organic Chemistry and Biomolecules

Nuclear Chemistry

Filters

Exam 4: Light and Electronic Structure

Nitrogen has _____ valence electrons.

Which configuration describes the electron configuration of iron?

An atom lost two valence electrons,resulting in a configuration of 1s22s22p6.The identity of this ion is:

Which statement is NOT correct?

What is the wavelength of a photon of light with a frequency of 5.00 × 1014 Hz?

The electronic configuration for aluminum is 1s22s22p63s23p1.The valence configuration for sulfur is:

Which pair has the same number of electrons?

Which statement is CORRECT?

What is the frequency of a photon of light with a wavelength of 615 nm?

Within an energy level,the _____ orbital is the LOWEST in energy.

Foundations

Measurement

Atoms

Chemical Bonds Compounds

Chemical Reactions

Mass Stoichiometry

Energy

Covalent Bonding and Molecules

Solids, Liquids, and Gases

Solutions

Acids Bases

Reaction Rates Equilibrium

Oxidation-Reduction Reactions

Organic Chemistry and Biomolecules

Nuclear Chemistry

Filters

An atom lost two valence electrons,resulting in a configuration of 1s²2s²2p⁶.The identity of this ion is:

What is the wavelength of a photon of light with a frequency of 5.00 × 10¹⁴ Hz?

The electronic configuration for aluminum is 1s²2s²2p⁶3s²3p¹.The valence configuration for sulfur is: