Question 1

The complete electron configuration of gallium, element 31, is .

Accepted Answer

A)  1s42s42p83s43p84s3 
B)  1s42s42p63s43p64s43d3 
C)  1s22s22p103s23p104s23d3 
D)  1s42s42p103s43p9 
E)  1s22s22p63s23p63d104s24p1 
A)  1s42s42p83s43p84s3 
B)  1s42s42p63s43p64s43d3 
C)  1s22s22p103s23p104s23d3 
D)  1s42s42p103s43p9 
E)  1s22s22p63s23p63d104s24p1

Question 2

An electron in a Bohr hydrogen atom has an energy of - 1.362 × 10- 19 J. The value of n for this electron is .

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 3

Which electron configuration represents a violation of Hund's rule for an atom in its ground state?

Accepted Answer

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

Question 4

Which electron configuration denotes an atom in its ground state?

Accepted Answer

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

Question 5

_- orbitals are spherically symmetrical.

Accepted Answer

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

Question 6

The photoelectric effect is .

Accepted Answer

A)  the darkening of photographic film when exposed to an electric field 
B)  the total reflection of light by metals giving them their typical luster 
C)  the ejection of electrons by a metal when struck with light of sufficient energy 
D)  the production of current by silicon solar cells when exposed to sunlight 
E)  a relativistic effect 
A)  the darkening of photographic film when exposed to an electric field 
B)  the total reflection of light by metals giving them their typical luster 
C)  the ejection of electrons by a metal when struck with light of sufficient energy 
D)  the production of current by silicon solar cells when exposed to sunlight 
E)  a relativistic effect

Question 7

The ground state electron configuration of copper is .

Accepted Answer

The answer of The ground state electron configuration of copper...

Question 8

The ground state electron configuration of Fe is .

Accepted Answer

A)  1sS1U1P12S1S1P02sS1U1P12S1S1P03sS1U1P12S1S1P03pS1U1P110S1S1P0 
B)  1sS1U1P12S1S1P02sS1U1P12S1S1P02pS1U1P16S1S1P03sS1U1P12S1S1P03pS1U1P16S1S1P04sS1U1P12S1S1P0 
C)  1sS1U1P12S1S1P02sS1U1P12S1S1P02pS1U1P16S1S1P03sS1U1P12S1S1P03pS1U1P16S1S1P03dS1U1P16S1S1P04sS1U1P12S1S1P0 
D)  1sS1U1P12S1S1P02sS1U1P12S1S1P03sS1U1P12S1S1P03pS1U1P16S1S1P03dS1U1P16S1S1P0 
E)  1sS1U1P12S1S1P02sS1U1P12S1S1P02pS1U1P16S1S1P03sS1U1P12S1S1P03pS1U1P16S1S1P04sS1U1P12S1S1P04dS1U1P16S1S1P0 
A)  1sS1U1P12S1S1P02sS1U1P12S1S1P03sS1U1P12S1S1P03pS1U1P110S1S1P0 
B)  1sS1U1P12S1S1P02sS1U1P12S1S1P02pS1U1P16S1S1P03sS1U1P12S1S1P03pS1U1P16S1S1P04sS1U1P12S1S1P0 
C)  1sS1U1P12S1S1P02sS1U1P12S1S1P02pS1U1P16S1S1P03sS1U1P12S1S1P03pS1U1P16S1S1P03dS1U1P16S1S1P04sS1U1P12S1S1P0 
D)  1sS1U1P12S1S1P02sS1U1P12S1S1P03sS1U1P12S1S1P03pS1U1P16S1S1P03dS1U1P16S1S1P0 
E)  1sS1U1P12S1S1P02sS1U1P12S1S1P02pS1U1P16S1S1P03sS1U1P12S1S1P03pS1U1P16S1S1P04sS1U1P12S1S1P04dS1U1P16S1S1P0

Question 9

Which one of the following represents an acceptable possible set of quantum numbers (in the order n, l, ml, ms) for an electron in an atom?

Accepted Answer

A)  2, 0, 1, - 1/2 
B)  2, 1, - 1, 1/2 
C)  2, 2, 0, 1/2 
D)  2, 1, 0, 0 
E)  2, 0, 2, +1/2 
A)  2, 0, 1, - 1/2 
B)  2, 1, - 1, 1/2 
C)  2, 2, 0, 1/2 
D)  2, 1, 0, 0 
E)  2, 0, 2, +1/2

Question 10

Which of the following is not a valid set of four quantum numbers? (n, l, ml, ms)

Accepted Answer

A)  1, 1, 0, +1/2 
B)  1, 0, 0, +1/2 
C)  2, 1, 0, - 1/2 
D)  3, 1, - 1, - 1/2 
E)  2, 0, 0, +1/2 
A)  1, 1, 0, +1/2 
B)  1, 0, 0, +1/2 
C)  2, 1, 0, - 1/2 
D)  3, 1, - 1, - 1/2 
E)  2, 0, 0, +1/2

Question 11

In a hydrogen atom, an electron in a orbital can absorb a photon, but cannot emit a photon.

Accepted Answer

A)  3f 
B)  3p 
C)  1s 
D)  2s 
E)  3s 
A)  3f 
B)  3p 
C)  1s 
D)  2s 
E)  3s

Question 12

The electron configuration of the valence electrons of an atom in its ground state is ns2n p3.` This atom is a group _ element.

Accepted Answer

Question 13

The principal quantum number for the outermost electrons in a Br atom in the ground state is

Accepted Answer

A)  4 
B)  5 
C)  3 
D)  1 
E)  2 
A)  4 
B)  5 
C)  3 
D)  1 
E)  2

Question 14

Which of the following elements has a ground- state electron configuration different from the predicted one?

Accepted Answer

A)  Ca 
B)  Xe 
C)  Ti 
D)  Cl 
E)  Cu 
A)  Ca 
B)  Xe 
C)  Ti 
D)  Cl 
E)  Cu

Question 15

Using Bohr's equation for the energy levels of the electron in the hydrogen atom, determine the energy (J) of an electron in the n = 4 level. _ _ .

Accepted Answer

A)  +1.84 × 10- 29 
B)  - 7.34 × 1018 
C)  - 1.36 × 10- 19 
D)  - 5.45 × 10- 19 
E)  - 1.84 × 10- 29 
A)  +1.84 × 10- 29 
B)  - 7.34 × 1018 
C)  - 1.36 × 10- 19 
D)  - 5.45 × 10- 19 
E)  - 1.84 × 10- 29

Question 16

The wavelength of an electron with a velocity of 6.00 × 106 m/s is m. The mass of the electron is 9.11 × 10- 28 g.

Accepted Answer

A)  8.25 × 1012 
B)  8.25 × 109 
C)  1.21 × 10- 13 
D)  1.21 × 10- 16 
E)  1.21 × 10- 10 
A)  8.25 × 1012 
B)  8.25 × 109 
C)  1.21 × 10- 13 
D)  1.21 × 10- 16 
E)  1.21 × 10- 10

Question 17

The de Broglie wavelength of a car (1.0 × 103 kg) traveling at 75 km/hr is m.

Accepted Answer

A)  8.8 × 10- 39 
B)  3.2 × 10- 35 
C)  1.4 × 10- 35 
D)  1.4 × 1035 
E)  3.2 × 10- 38 
A)  8.8 × 10- 39 
B)  3.2 × 10- 35 
C)  1.4 × 10- 35 
D)  1.4 × 1035 
E)  3.2 × 10- 38

Question 18

When the electron in a hydrogen atom moves from n = 8 to n = 2 light with a wavelength of
Nm is emitted.

Accepted Answer

A)  657 
B)  389 
C)  487 
D)  93.8 
E)  411 
A)  657 
B)  389 
C)  487 
D)  93.8 
E)  411

Question 19

Which electron configuration represents a violation of Hund's rule for an atom in its ground state?

Accepted Answer

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

Question 20

The shape of an orbital is defined by the azimuthal quantum number which is represented as letter

Accepted Answer

The answer of The shape of an orbital is defined...

Exam 6: Electronic Structure of Atoms

The complete electron configuration of gallium, element 31, is .

An electron in a Bohr hydrogen atom has an energy of - 1.362 × 10- 19 J. The value of n for this electron is .

Which electron configuration represents a violation of Hund's rule for an atom in its ground state?

Which electron configuration denotes an atom in its ground state?

_- orbitals are spherically symmetrical.

The photoelectric effect is .

The ground state electron configuration of copper is .

The ground state electron configuration of Fe is .

Which one of the following represents an acceptable possible set of quantum numbers (in the order n, l, ml, ms) for an electron in an atom?

Which of the following is not a valid set of four quantum numbers? (n, l, ml, ms)

In a hydrogen atom, an electron in a orbital can absorb a photon, but cannot emit a photon.

The electron configuration of the valence electrons of an atom in its ground state is ns2n p3.` This atom is a group _ element.

The principal quantum number for the outermost electrons in a Br atom in the ground state is

Which of the following elements has a ground- state electron configuration different from the predicted one?

Using Bohr's equation for the energy levels of the electron in the hydrogen atom, determine the energy (J) of an electron in the n = 4 level. _ _ .

The wavelength of an electron with a velocity of 6.00 × 106 m/s is m. The mass of the electron is 9.11 × 10- 28 g.

The de Broglie wavelength of a car (1.0 × 103 kg) traveling at 75 km/hr is m.

When the electron in a hydrogen atom moves from n = 8 to n = 2 light with a wavelength of Nm is emitted.

Which electron configuration represents a violation of Hund's rule for an atom in its ground state?

The shape of an orbital is defined by the azimuthal quantum number which is represented as letter

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Gases

Intermolecular Forces, Liquids, and Solids

Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Chemistry of Coordination Compounds

The Chemistry of Life: Organic and Biological Chemistry

Filters

An electron in a Bohr hydrogen atom has an energy of - 1.362 × 10^-¹⁹J. The value of n for this electron is .

Which one of the following represents an acceptable possible set of quantum numbers (in the order n, l, m_l, m_s) for an electron in an atom?

Which of the following is not a valid set of four quantum numbers? (n, l, m_l, m_s)

The electron configuration of the valence electrons of an atom in its ground state is ns²n p³.` This atom is a group _ element.

The wavelength of an electron with a velocity of 6.00 × 10⁶m/s is m. The mass of the electron is 9.11 × 10^-²⁸g.

The de Broglie wavelength of a car (1.0 × 10³kg) traveling at 75 km/hr is m.