Question 1

Compared to sulfur,chlorine has a ________ effective nuclear charge,Zeff,and a ________ atomic radius.

Accepted Answer

Question 2

What is the de Broglie wavelength of a 300-g object moving at a velocity of 50 m/s (about 100 mph)?

Accepted Answer

A) 4 × 10-38 m 
B) 4 × 10-35 m 
C) 4 × 109 m 
D) 4 × 1012 m 
A) 4 × 10-38 m 
B) 4 × 10-35 m 
C) 4 × 109 m 
D) 4 × 1012 m

Question 3

According to the Balmer-Rydberg equation,electromagnetic radiation with the shortest wavelength will be emitted when an electron undergoes which of the following transitions?

Accepted Answer

A) m = 1 → n = 2 
B) m = 2 → n = 3 
C) n = 2 → m = 1 
D) n = 3 → m = 2 
A) m = 1 → n = 2 
B) m = 2 → n = 3 
C) n = 2 → m = 1 
D) n = 3 → m = 2

Question 4

A person is most likely to experience serious biological effects when exposed to which of the following forms of electromagnetic radiation?

Accepted Answer

A) Microwaves 
B) infrared 
C) Ultraviolet 
D) X-rays 
A) Microwaves 
B) infrared 
C) Ultraviolet 
D) X-rays

Question 5

Which orbitals have two nodal planes passing through the nucleus?

Accepted Answer

A) s 
B) p 
C) d 
D) all in the third shell 
A) s 
B) p 
C) d 
D) all in the third shell

Question 6

Of the following,which atom has the smallest atomic radius?

Accepted Answer

A) Mg 
B) S 
C) Sr 
D) Te 
A) Mg 
B) S 
C) Sr 
D) Te

Question 7

Which of the following represent electron configurations that violate the Pauli exclusion principle?
(A)[Ne]3s13p5 
(B)[Kr]4d125s25p3 
(C)[Ar]3d104s24p2

Accepted Answer

A) only (
A)  
B) only (
B)  
C) (
A) and (
B)  
D) (
B) and (
C)  
A) only (
A)  
B) only (
B)  
C) (
A) and (
B)  
D) (
B) and (
C)

Question 8

Light can be made to have a higher intensity by raising its

Accepted Answer

A) amplitude. 
B) energy. 
C) frequency. 
D) wavelength. 
A) amplitude. 
B) energy. 
C) frequency. 
D) wavelength.

Question 9

Which element has the ground-state electron configuration [Xe]6s25d14f7?

Accepted Answer

A) Pt 
B) Eu 
C) Gd 
D) Tb 
A) Pt 
B) Eu 
C) Gd 
D) Tb

Question 10

The spheres below represent atoms of Li,Be,B,and F (not necessarily in that order).  
-Which one of these spheres represents an atom of F?

Accepted Answer

A) sphere (a) 
B) sphere (b) 
C) sphere (c) 
D) sphere (d) 
A) sphere (a) 
B) sphere (b) 
C) sphere (c) 
D) sphere (d)

Question 11

Which orbital-filling diagram represents the ground state of vanadium?

Accepted Answer

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

Question 12

The Balmer-Rydberg equation can be extended to ions with only one electron,such as He+.In that case it has the form: 1/λ = Z2R(1/m2 - 1/n2),where Z is the atomic number.What is the energy of the photon required to promote an electron in He+ from a 1s orbital to a 2p orbital?

Accepted Answer

A) (3/4)hcR 
B) 3hcR 
C) 4hcR 
D) 12hcR 
A) (3/4)hcR 
B) 3hcR 
C) 4hcR 
D) 12hcR

Question 13

Which atom in each group (I and II)has the smallest atomic radius?
(I)Sr,Zr,I (II)N,P,As

Accepted Answer

A) Sr;N 
B) Sr;As 
C) I;N 
D) I;As 
A) Sr;N 
B) Sr;As 
C) I;N 
D) I;As

Question 14

Which has the highest Zeff for its valence electrons?

Accepted Answer

A) Na 
B) K 
C) Si 
D) Cl 
A) Na 
B) K 
C) Si 
D) Cl

Question 15

What are the possible values of n and ml for an electron in a 5d orbital?

Accepted Answer

A) n = 1,2,3,4,or 5 and ml = 2 
B) n = 1,2,3,4,or 5 and ml = -2,-1,0,+1,or +2 
C) n = 5 and ml = 2 
D) n = 5 and ml = -2,-1,0,+1,or +2 
A) n = 1,2,3,4,or 5 and ml = 2 
B) n = 1,2,3,4,or 5 and ml = -2,-1,0,+1,or +2 
C) n = 5 and ml = 2 
D) n = 5 and ml = -2,-1,0,+1,or +2

Question 16

-If wave (a)represents green light,wave (b)might represent

Accepted Answer

A) blue light. 
B) red light. 
C) ultraviolet radiation. 
D) X-rays. 
A) blue light. 
B) red light. 
C) ultraviolet radiation. 
D) X-rays.

Question 17

Middle C on a piano has a frequency of 262 Hz.In a vacuum 262 Hz has a corresponding wavelength of ________ m.

Accepted Answer

The answer of Middle C on a piano has a...

Question 18

For hydrogen,what is the wavelength of the photon emitted when an electron drops from a 4d orbital to a 2p orbital in a hydrogen atom? The Rydberg constant is 1.097 × 10-2 nm-1.

Accepted Answer

A) 656.3 nm 
B) 486.2 nm 
C) 364.6 nm 
D) 2)057 × 10-3 nm 
A) 656.3 nm 
B) 486.2 nm 
C) 364.6 nm 
D) 2)057 × 10-3 nm

Question 19

-Wave (b)has the

Accepted Answer

A) higher amplitude and greater intensity than wave (a). 
B) higher amplitude and weaker intensity than wave (a). 
C) lower amplitude and greater intensity than wave (a). 
D) lower amplitude and weaker intensity than wave (a). 
A) higher amplitude and greater intensity than wave (a). 
B) higher amplitude and weaker intensity than wave (a). 
C) lower amplitude and greater intensity than wave (a). 
D) lower amplitude and weaker intensity than wave (a).

Question 20

The property of a wave that is associated with brightness or intensity is ________.

Accepted Answer

The answer of The property of a wave that is...

Exam 5: Periodicity and the Atomic Structure of Atoms

Compared to sulfur,chlorine has a ________ effective nuclear charge,Zeff,and a ________ atomic radius.

What is the de Broglie wavelength of a 300-g object moving at a velocity of 50 m/s (about 100 mph)?

According to the Balmer-Rydberg equation,electromagnetic radiation with the shortest wavelength will be emitted when an electron undergoes which of the following transitions?

A person is most likely to experience serious biological effects when exposed to which of the following forms of electromagnetic radiation?

Which orbitals have two nodal planes passing through the nucleus?

Of the following,which atom has the smallest atomic radius?

Which of the following represent electron configurations that violate the Pauli exclusion principle? (A)[Ne]3s13p5 (B)[Kr]4d125s25p3 (C)[Ar]3d104s24p2

Light can be made to have a higher intensity by raising its

Which element has the ground-state electron configuration [Xe]6s25d14f7?

The spheres below represent atoms of Li,Be,B,and F (not necessarily in that order). -Which one of these spheres represents an atom of F?

Which orbital-filling diagram represents the ground state of vanadium?

The Balmer-Rydberg equation can be extended to ions with only one electron,such as He+.In that case it has the form: 1/λ = Z2R(1/m2 - 1/n2),where Z is the atomic number.What is the energy of the photon required to promote an electron in He+ from a 1s orbital to a 2p orbital?

Which atom in each group (I and II)has the smallest atomic radius? (I)Sr,Zr,I (II)N,P,As

Which has the highest Zeff for its valence electrons?

What are the possible values of n and ml for an electron in a 5d orbital?

-If wave (a)represents green light,wave (b)might represent

Middle C on a piano has a frequency of 262 Hz.In a vacuum 262 Hz has a corresponding wavelength of ________ m.

For hydrogen,what is the wavelength of the photon emitted when an electron drops from a 4d orbital to a 2p orbital in a hydrogen atom? The Rydberg constant is 1.097 × 10-2 nm-1.

-Wave (b)has the

The property of a wave that is associated with brightness or intensity is ________.

Chemistry: Matter and Measurement

Atoms, molecules, and Ions

Formulas, equations, and Moles

Reactions in Aqueous Solutions

Ionic Bonds and Some Main-Group Chemistry

Covalent Bonds and Molecular Structure

Thermochemistry: Chemical Energy

Gases: Their Properties and Behavior

Liquids,solids,and Phase Changes

Solutions and Their Properties

Chemical Kinetics

Chemical Equilibrium

Aqueous Equilibria: Acids and Bases

Applications of Aqueous Equilibria

Thermodynamics: Entropy, free Energy, and Equilibrium

Electrochemistry

Hydrogen, oxygen, and Water

The Main-Group Elements

Transition Elements and Coordination Chemistry

Metals and Solid-State Materials

Nuclear Chemistry

Organic and Biological Chemistry

Filters

Compared to sulfur,chlorine has a ________ effective nuclear charge,Z_eff,and a ________ atomic radius.

Which of the following represent electron configurations that violate the Pauli exclusion principle? (A)[Ne]3s¹3p⁵ (B)[Kr]4d¹²5s²5p³ (C)[Ar]3d¹⁰4s²4p²

Which element has the ground-state electron configuration [Xe]6s²5d¹4f⁷?

The Balmer-Rydberg equation can be extended to ions with only one electron,such as He⁺.In that case it has the form: 1/λ = Z²R(1/m² - 1/n²),where Z is the atomic number.What is the energy of the photon required to promote an electron in He⁺ from a 1s orbital to a 2p orbital?

Which has the highest Z_eff for its valence electrons?

What are the possible values of n and m_l for an electron in a 5d orbital?

For hydrogen,what is the wavelength of the photon emitted when an electron drops from a 4d orbital to a 2p orbital in a hydrogen atom? The Rydberg constant is 1.097 × 10^-2 nm^-1.