Question 1

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

Accepted Answer

A) S, S2- 
B) Cl, Cl- 
C) F−, Ne 
D) P, P3− 
E) Br-, Se2− 
A) S, S2- 
B) Cl, Cl- 
C) F−, Ne 
D) P, P3− 
E) Br-, Se2−

Question 2

Which of the following is the correct ground state electron configuration for a sodium atom?

Accepted Answer

A) 1s22s22p7 
B) 1s22s22p63s23p1 
C) 1s22s22p63s1 
D) 1s22s22p63p1 
E) 1s22s22p6 
A) 1s22s22p7 
B) 1s22s22p63s23p1 
C) 1s22s22p63s1 
D) 1s22s22p63p1 
E) 1s22s22p6

Question 3

Explain why the number of valence electrons for a main-group element is equal to its Roman numeral group number.

Accepted Answer

The number of valence electrons for a ma

Question 4

Wavelength is inversely proportional to frequency.

Accepted Answer

A) True 
 B)False

Question 5

Which element has the abbreviated ground-state electron configuration [Ar]4s23d6?

Accepted Answer

A) Fe 
B) Co 
C) Se 
D) Mn 
E) Kr 
A) Fe 
B) Co 
C) Se 
D) Mn 
E) Kr

Question 6

A laser used in DVD players has a wavelength of 405 nm. What is the frequency of this light in hertz (s−1)?

Accepted Answer

A) 7.41 × 105 s−1 
B) 7.41 × 1014 s−1 
C) 1.35 × 10-6 s−1 
D) 1.35 × 10-13 s−1 
E) 1.22 × 102 s−1 
A) 7.41 × 105 s−1 
B) 7.41 × 1014 s−1 
C) 1.35 × 10-6 s−1 
D) 1.35 × 10-13 s−1 
E) 1.22 × 102 s−1

Question 7

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

Accepted Answer

A) 2 and 5 
B) 2 and 7 
C) 3 and 5 
D) 3 and 7 
E) 3 and 6 
A) 2 and 5 
B) 2 and 7 
C) 3 and 5 
D) 3 and 7 
E) 3 and 6

Question 8

Which of the images represents a p orbital?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) none of the 
A) A 
B) B 
C) C 
D) D 
E) none of the

Question 9

Upon electrification, hydrogen produces a characteristic line spectrum consisting of four lines in the visible region of the electromagnetic spectrum. The light emitted in different regions of the visible spectrum corresponds to transitions from the third (n = 3), fourth (n = 4), fifth (n = 5), or sixth (n = 6)energy level down to the second (n = 2). Which transition corresponds to the red line in the hydrogen spectrum?

Accepted Answer

A) n = 2 → n = 3 
B) n = 2 → n = 6 
C) n = 3 → n = 2 
D) n = 4 → n = 2 
E) n = 6 → n = 2 
A) n = 2 → n = 3 
B) n = 2 → n = 6 
C) n = 3 → n = 2 
D) n = 4 → n = 2 
E) n = 6 → n = 2

Question 10

A laser used in DVD players has a wavelength of 405 nm. What is the energy of this light in joules?

Accepted Answer

A) 4.91 × 10−28 J 
B) 4.91 × 10−19 J 
C) 8.05 × 10−32 J 
D) 8.05 × 10−23 J 
E) 2.98 × 10−32 J 
A) 4.91 × 10−28 J 
B) 4.91 × 10−19 J 
C) 8.05 × 10−32 J 
D) 8.05 × 10−23 J 
E) 2.98 × 10−32 J

Question 11

In the Bohr model of the hydrogen atom, an electron can exist between orbits.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following statements regarding orbital diagrams is correct?

Accepted Answer

A) The 2p sublevel has two orbitals. 
B) The 4p sublevel has four orbitals. 
C) Four electrons can be placed in each orbital. 
D) All of the electrons in a given orbital must have the same spin. 
E) Electrons will fill a given sublevel in a way that gives the maximum number of unpaired electrons. 
A) The 2p sublevel has two orbitals. 
B) The 4p sublevel has four orbitals. 
C) Four electrons can be placed in each orbital. 
D) All of the electrons in a given orbital must have the same spin. 
E) Electrons will fill a given sublevel in a way that gives the maximum number of unpaired electrons.

Question 13

Your friend wrote the electron configuration of bromine as 1s22s22p63s23p64s24d104p6. Describe how you would correct your friend's electron configuration.

Accepted Answer

The electron configuration your friend w

Question 14

Which of the following is the correct orbital diagram for silicon?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 15

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

Accepted Answer

A) 3 and 5 
B) 3 and 7 
C) 4 and 5 
D) 4 and 7 
E) 5 and 5 
A) 3 and 5 
B) 3 and 7 
C) 4 and 5 
D) 4 and 7 
E) 5 and 5

Question 16

Explain in terms of atomic structure why more energy is required to remove one electron from a magnesium atom than from a sodium atom.

Accepted Answer

The difference in the amount of energy r

Question 17

Rank the following elements in order of increasing ionization energy: Ge, Rb, S, Ne

Accepted Answer

A) Ge < Rb < Ne < S 
B) Rb < S < Ne < Ge 
C) S < Ne < Ge < Rb 
D) Rb < Ge < S < Ne 
E) Rb < Ge < Ne < S 
A) Ge < Rb < Ne < S 
B) Rb < S < Ne < Ge 
C) S < Ne < Ge < Rb 
D) Rb < Ge < S < Ne 
E) Rb < Ge < Ne < S

Question 18

Sodium has a greater first ionization energy than cesium because sodium's valence electron is closer to the nucleus than cesium's valence electron.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following electron transitions in the hydrogen atom result in emission of light with the longest wavelength?

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 wavelength. 
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 wavelength.

Question 20

Write the element symbol for the element with the abbreviated electron configuration [Kr]5s24d105p1.

Accepted Answer

The given abbreviated electron configura

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

Which of the following is the correct ground state electron configuration for a sodium atom?

Explain why the number of valence electrons for a main-group element is equal to its Roman numeral group number.

Wavelength is inversely proportional to frequency.

Which element has the abbreviated ground-state electron configuration [Ar]4s²3d⁶?

A laser used in DVD players has a wavelength of 405 nm. What is the frequency of this light in hertz (s⁻¹)?

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

Which of the images represents a p orbital?

A laser used in DVD players has a wavelength of 405 nm. What is the energy of this light in joules?

In the Bohr model of the hydrogen atom, an electron can exist between orbits.

Which of the following statements regarding orbital diagrams is correct?

Your friend wrote the electron configuration of bromine as 1s²2s²2p⁶3s²3p⁶4s²4d¹⁰4p⁶. Describe how you would correct your friend's electron configuration.

Which of the following is the correct orbital diagram for silicon?

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

Explain in terms of atomic structure why more energy is required to remove one electron from a magnesium atom than from a sodium atom.

Rank the following elements in order of increasing ionization energy: Ge, Rb, S, Ne

Sodium has a greater first ionization energy than cesium because sodium's valence electron is closer to the nucleus than cesium's valence electron.

Which of the following electron transitions in the hydrogen atom result in emission of light with the longest wavelength?

Write the element symbol for the element with the abbreviated electron configuration [Kr]5s²4d¹⁰5p¹.

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

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

Which of the following is the correct ground state electron configuration for a sodium atom?

Explain why the number of valence electrons for a main-group element is equal to its Roman numeral group number.

Wavelength is inversely proportional to frequency.

Which element has the abbreviated ground-state electron configuration [Ar]4s23d6?

A laser used in DVD players has a wavelength of 405 nm. What is the frequency of this light in hertz (s−1)?

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

Which of the images represents a p orbital?

A laser used in DVD players has a wavelength of 405 nm. What is the energy of this light in joules?

In the Bohr model of the hydrogen atom, an electron can exist between orbits.

Which of the following statements regarding orbital diagrams is correct?

Your friend wrote the electron configuration of bromine as 1s22s22p63s23p64s24d104p6. Describe how you would correct your friend's electron configuration.

Which of the following is the correct orbital diagram for silicon?

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

Explain in terms of atomic structure why more energy is required to remove one electron from a magnesium atom than from a sodium atom.

Rank the following elements in order of increasing ionization energy: Ge, Rb, S, Ne

Sodium has a greater first ionization energy than cesium because sodium's valence electron is closer to the nucleus than cesium's valence electron.

Which of the following electron transitions in the hydrogen atom result in emission of light with the longest wavelength?

Write the element symbol for the element with the abbreviated electron configuration [Kr]5s24d105p1.

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

Which element has the abbreviated ground-state electron configuration [Ar]4s²3d⁶?

A laser used in DVD players has a wavelength of 405 nm. What is the frequency of this light in hertz (s⁻¹)?

Your friend wrote the electron configuration of bromine as 1s²2s²2p⁶3s²3p⁶4s²4d¹⁰4p⁶. Describe how you would correct your friend's electron configuration.

Write the element symbol for the element with the abbreviated electron configuration [Kr]5s²4d¹⁰5p¹.