Question 1

Copper exhibits the expected electron configuration.

Accepted Answer

A) True 
 B)False

Question 2

Choose the atom or ion using a periodic table.
-Larger atomic radius,P or Sb

Accepted Answer

The answer of Choose the atom or ion using a...

Question 3

Consider a planet where the temperature is so high that the ground state of an electron in the hydrogen atom is n = 4.What is the ratio of ionization energy for hydrogen on this planet compared to that on Earth?

Accepted Answer

A) 1 : 4 
B) 4 : 1 
C) 1 : 16 
D) 16 : 1 
E) 1 : 1 
A) 1 : 4 
B) 4 : 1 
C) 1 : 16 
D) 16 : 1 
E) 1 : 1

Question 4

Order the elements S,Cl,and F in terms of increasing atomic radii.

Accepted Answer

A) S,Cl,F 
B) Cl,F,S 
C) F,S,Cl 
D) F,Cl,S 
E) S,F,Cl 
A) S,Cl,F 
B) Cl,F,S 
C) F,S,Cl 
D) F,Cl,S 
E) S,F,Cl

Question 5

Which of the following could not be a valid ml quantum number for a 4d orbital?

Accepted Answer

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

Question 6

Consider the graph below to answer the next two questions:  
-Explain the ionization energy difference between sodium and potassium.

Accepted Answer

Potassium has a slightly lower ionizatio

Question 7

Give the quantum numbers for the last electron in:
a)gold
b)magnesium
c)iodine
d)cadmium

Accepted Answer

a)gold: 5,2,2, @#IMG-DLM& (into a 5d-orb

Question 8

Which of the following is not determined by the principal quantum number,n,of the electron in a hydrogen atom?

Accepted Answer

A) The energy of the electron. 
B) the minimum wavelength of the light needed to remove the electron from the atom. 
C) The size of the corresponding atomic orbital(s). 
D) The shape of the corresponding atomic orbital(s). 
E) All of the above are determined by n. 
A) The energy of the electron. 
B) the minimum wavelength of the light needed to remove the electron from the atom. 
C) The size of the corresponding atomic orbital(s). 
D) The shape of the corresponding atomic orbital(s). 
E) All of the above are determined by n.

Question 9

What is the wavelength of a photon of red light (in nm)whose frequency is 4.55 $\times$ 1014 Hz?

Accepted Answer

A) 659 nm 
B) 1.52 $\times$ 106 nm 
C) 152 nm 
D) 455 nm 
E) none of these 
A) 659 nm 
B) 1.52 $\times$ 106 nm 
C) 152 nm 
D) 455 nm 
E) none of these

Question 10

If n = 2,how many orbitals are possible?

Accepted Answer

A) 3 
B) 4 
C) 2 
D) 8 
E) 6 
A) 3 
B) 4 
C) 2 
D) 8 
E) 6

Question 11

The number of orbitals having a given value of l is equal to

Accepted Answer

A) 2l + 1 
B) 2n + 2 
C) 3l 
D) l + ml 
E) the number of lobes in each orbital 
A) 2l + 1 
B) 2n + 2 
C) 3l 
D) l + ml 
E) the number of lobes in each orbital

Question 12

An element has the electron configuration [Kr] 5s24d105p2.The element is a(n)

Accepted Answer

A) nonmetal 
B) transition element 
C) metal 
D) lanthanide 
E) actinide 
A) nonmetal 
B) transition element 
C) metal 
D) lanthanide 
E) actinide

Question 13

Which of the following are incorrectly paired?

Accepted Answer

A) wavelength - $\lambda$ 
B) frequency - $v$ 
C) speed of light - c 
D) hertz - s-1 
E) x-rays - shortest wavelength 
A) wavelength - $\lambda$ 
B) frequency - $v$ 
C) speed of light - c 
D) hertz - s-1 
E) x-rays - shortest wavelength

Question 14

Write the electron configuration for the following:
-S2-

Accepted Answer

1s²2s²2p⁶3s²3p

Question 15

Consider the graph below to answer the next two questions:  
-Explain why argon has the highest ionization energy.

Accepted Answer

Argon has the highest ionization energy

Question 16

The small,but important,energy differences between 3s,3p,and 3d orbitals are due mainly to

Accepted Answer

A) the number of electrons they can hold 
B) their principal quantum number 
C) the Heisenberg uncertainty principle 
D) the penetration effect 
E) Hund's rule 
A) the number of electrons they can hold 
B) their principal quantum number 
C) the Heisenberg uncertainty principle 
D) the penetration effect 
E) Hund's rule

Question 17

For the set of elements Li,O,Ne,and Na,which element has the largest atomic radius? Explain any deviation from the expected pattern.

Accepted Answer

Na has the largest atomic radi

Question 18

What is the l quantum number for a 4s orbital?

Accepted Answer

A) 1 
B) 0 
C) 3 
D) 2 
E) more than one of the above 
A) 1 
B) 0 
C) 3 
D) 2 
E) more than one of the above

Question 19

The SI unit for frequency is cycles per second.

Accepted Answer

A) True 
 B)False

Question 20

Choose the atom or ion using a periodic table.
-Larger first ionization energy,Na or Rb

Accepted Answer

The answer of Choose the atom or ion using a...

Exam 7: Atomic Structure and Periodicity

Copper exhibits the expected electron configuration.

Choose the atom or ion using a periodic table. -Larger atomic radius,P or Sb

Consider a planet where the temperature is so high that the ground state of an electron in the hydrogen atom is n = 4.What is the ratio of ionization energy for hydrogen on this planet compared to that on Earth?

Order the elements S,Cl,and F in terms of increasing atomic radii.

Which of the following could not be a valid ml quantum number for a 4d orbital?

Consider the graph below to answer the next two questions: -Explain the ionization energy difference between sodium and potassium.

Give the quantum numbers for the last electron in: a)gold b)magnesium c)iodine d)cadmium

Which of the following is not determined by the principal quantum number,n,of the electron in a hydrogen atom?

What is the wavelength of a photon of red light (in nm)whose frequency is 4.55 ×\times× 1014 Hz?

If n = 2,how many orbitals are possible?

The number of orbitals having a given value of l is equal to

An element has the electron configuration [Kr] 5s24d105p2.The element is a(n)

Which of the following are incorrectly paired?

Write the electron configuration for the following: -S2-

Consider the graph below to answer the next two questions: -Explain why argon has the highest ionization energy.

The small,but important,energy differences between 3s,3p,and 3d orbitals are due mainly to

For the set of elements Li,O,Ne,and Na,which element has the largest atomic radius? Explain any deviation from the expected pattern.

What is the l quantum number for a 4s orbital?

The SI unit for frequency is cycles per second.

Choose the atom or ion using a periodic table. -Larger first ionization energy,Na or Rb

Chemical Foundations

Atoms, molecules, and Ions

Stoichiometry

Chemical Reactions and Solutions Stoichiometry

Gases

Thermochemistry

Bonding: General Concepts

Covalent Bonding: Orbitals

Liquids and Solids

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria

Solubility and Complex Ion Equilibria

Spontaneity, entropy, and Free Energy

Electrochemistry

The Nucleus: a Chemists View

The Representative Elements

Transition Metals and Coordination Chemistry

Organic and Biological Molecules

Filters

Which of the following could not be a valid m_l quantum number for a 4d orbital?

What is the wavelength of a photon of red light (in nm)whose frequency is 4.55 $\times$ 10¹⁴ Hz?

An element has the electron configuration [Kr] 5s²4d¹⁰5p².The element is a(n)

Write the electron configuration for the following: -S²^-