Question 1

What is the correct electron configuration for a germanium (Ge)atom?

Accepted Answer

A) 1s22s22p63s23p64s24p2 
B) 1s22s22p63s23p64s23d104p2 
C) 1s22s22p63s23p2 
D) 1s22s23s23p5 
E) None of the answers is correct. 
A) 1s22s22p63s23p64s24p2 
B) 1s22s22p63s23p64s23d104p2 
C) 1s22s22p63s23p2 
D) 1s22s23s23p5 
E) None of the answers is correct.

Question 2

Calculate the wavelength,in nanometers,of the light emitted by a hydrogen atom when its electron falls from the n = 7 to the n = 4 principal energy level.Recall that the energy levels of the H atom are given by En = -2.18 × 10-18 J (1/n2).(c = 3.00 × 108 m/s; h = 6.63 × 10-34 J • s)

Accepted Answer

A) 4.45 × 10-20 nm 
B) 2.16 × 10-6 nm 
C) 9.18 × 10-20 nm 
D) 1.38 × 1014 nm 
E) 2.17 × 103 nm 
A) 4.45 × 10-20 nm 
B) 2.16 × 10-6 nm 
C) 9.18 × 10-20 nm 
D) 1.38 × 1014 nm 
E) 2.17 × 103 nm

Question 3

Select the correct electron configuration for Te (Z = 52).

Accepted Answer

A) [Kr]5s25p64d8 
B) [Kr]5s25d105p4 
C) [Kr]5s24d105p6 
D) [Kr]5s24f14 
E) [Kr]5s24d105p4 
A) [Kr]5s25p64d8 
B) [Kr]5s25d105p4 
C) [Kr]5s24d105p6 
D) [Kr]5s24f14 
E) [Kr]5s24d105p4

Question 4

Calculate the wavelength associated with a 20Ne+ ion moving at a velocity of 2.0 × 105 m/s.The atomic mass of Ne-20 is 19.992 amu.(1 amu = 1.66 × 10-24 g and h = 6.63 × 10-34 J • s)

Accepted Answer

A) 1.0 × 10-13 m 
B) 1.0 × 10-16 m 
C) 1.0 × 10-18 m 
D) 9.7 × 1012 m 
E) 2.0 × 10-13 cm 
A) 1.0 × 10-13 m 
B) 1.0 × 10-16 m 
C) 1.0 × 10-18 m 
D) 9.7 × 1012 m 
E) 2.0 × 10-13 cm

Question 5

What is defined as the distance between identical points on successive waves?

Accepted Answer

A) frequency 
B) amplitude 
C) magnitude 
D) wavelength 
E) light 
A) frequency 
B) amplitude 
C) magnitude 
D) wavelength 
E) light

Question 6

A neutral atom in its ground state contains 28 electrons.This element is considered a __________ element,and has _______ electrons in orbitals with l = 2.

Accepted Answer

A) main group,8 
B) actinide,10 
C) main group,10 
D) transition,10 
E) transition,8 
A) main group,8 
B) actinide,10 
C) main group,10 
D) transition,10 
E) transition,8

Question 7

Which of the following is a correct set of quantum numbers for an electron in a 3d orbital?

Accepted Answer

A) n = 3,l = 0,ml = -1 
B) n = 3,l = 1,ml = +3 
C) n = 3,l = 2,ml = 3 
D) n = 3,l = 3,ml = +2 
E) n = 3,l = 2,ml = -2 
A) n = 3,l = 0,ml = -1 
B) n = 3,l = 1,ml = +3 
C) n = 3,l = 2,ml = 3 
D) n = 3,l = 3,ml = +2 
E) n = 3,l = 2,ml = -2

Question 8

The principal quantum number designates the size of the orbital.

Accepted Answer

A) True 
 B)False

Question 9

What is the energy in joules of a mole of photons associated with red light of wavelength 7.00 × 102 nm? (c= 3.00 × 108 m/s; h = 6.63 × 10-34 J • s; NA = 6.022 × 1023 /mole)

Accepted Answer

A) 256 kJ 
B) 1.71 × 105 J 
C) 4.72 × 10-43 J 
D) 12.4 kJ 
E) 2.12 × 1042 J 
A) 256 kJ 
B) 1.71 × 105 J 
C) 4.72 × 10-43 J 
D) 12.4 kJ 
E) 2.12 × 1042 J

Question 10

Calculate the wavelength of a neutron that has a velocity of 200.cm/s.(mass of a neutron = 1.675 × 10-27 kg and h = 6.63 × 10-34 J • s)

Accepted Answer

A) 1.98 × 10-9 m 
B) 216 nm 
C) 1.8 × 1050 m 
D) 198 nm 
E) 5.05 mm 
A) 1.98 × 10-9 m 
B) 216 nm 
C) 1.8 × 1050 m 
D) 198 nm 
E) 5.05 mm

Question 11

A sprinter must average 24.0 mi/h to win a 100-m dash in 9.30 s.What is his wavelength at this speed if his mass is 84.5 kg ? (h = 6.63 × 10-34 J • s)

Accepted Answer

A) 7.31 × 10-37 m 
B) 3.26 × 10-37 m 
C) 5.08 × 10-30 m 
D) 1.34 × 10-30 m 
E) None of these choices is correct. 
A) 7.31 × 10-37 m 
B) 3.26 × 10-37 m 
C) 5.08 × 10-30 m 
D) 1.34 × 10-30 m 
E) None of these choices is correct.

Question 12

According to the Aufbau principle,the most stable arrangement of electrons places them in degenerate orbitals with the same spin.

Accepted Answer

A) True 
 B)False

Question 13

Hund's rule states that the most stable arrangement of electrons in orbitals of equal energy is the one in which the number of electrons with parallel spin is ______________.

Accepted Answer

A) minimized 
B) nullified 
C) neutral 
D) maximized 
E) not relevant 
A) minimized 
B) nullified 
C) neutral 
D) maximized 
E) not relevant

Question 14

a.de Broglie

Accepted Answer

b.The equation is a quantitati

Question 15

The de Broglie equation predicts that the wavelength (in m)of a proton moving at 1000.m/s is ________________.(h = 6.63 × 10-34 J • s; mass of a proton = 1.673 × 10-24 g)

Accepted Answer

A) 3.96 × 10-10 m 
B) 3.96 × 10-7 m 
C) 2.52 × 106 m 
D) 2.52 × 109 m 
E) > 1010 m 
A) 3.96 × 10-10 m 
B) 3.96 × 10-7 m 
C) 2.52 × 106 m 
D) 2.52 × 109 m 
E) > 1010 m

Question 16

What is the electron configuration for tungsten?

Accepted Answer

A) 1s22s22p63s23p64s23d104p65s24d105p66s24f145d6 
B) 1s22s22p63s23p64s23d104p65s24d105p66s14f145d5 
C) 1s22s22p63s23p64s23d104p65s24d105p66s24f145d4 
D) 1s22s22p63s23p64s23d104p65s24d105p66s24f145d7 
E) 1s22s22p63s23p54s23d104p65s24d105p66s24f145d7 
A) 1s22s22p63s23p64s23d104p65s24d105p66s24f145d6 
B) 1s22s22p63s23p64s23d104p65s24d105p66s14f145d5 
C) 1s22s22p63s23p64s23d104p65s24d105p66s24f145d4 
D) 1s22s22p63s23p64s23d104p65s24d105p66s24f145d7 
E) 1s22s22p63s23p54s23d104p65s24d105p66s24f145d7

Question 17

What type of configuration specifies the arrangement of electrons in the orbitals of an atom?

Accepted Answer

A) Heisenberg configuration 
B) Nuclear configuration 
C) Atomic configuration 
D) Proton configuration 
E) Electron configuration 
A) Heisenberg configuration 
B) Nuclear configuration 
C) Atomic configuration 
D) Proton configuration 
E) Electron configuration

Question 18

In the __________ series,nf = 1 and you observe the ultraviolet region of the electromagnetic spectrum.

Accepted Answer

The answer of In the __________ series,nf = 1 and...

Question 19

Select the arrangement of electromagnetic radiation which starts with the lowest energy and increases to the greatest energy.

Accepted Answer

A) radio,infrared,ultraviolet,gamma rays 
B) radio,ultraviolet,infrared,gamma rays 
C) gamma rays,infrared,radio,ultraviolet 
D) gamma rays,ultraviolet,infrared,radio 
E) infrared,ultraviolet,radio,gamma rays 
A) radio,infrared,ultraviolet,gamma rays 
B) radio,ultraviolet,infrared,gamma rays 
C) gamma rays,infrared,radio,ultraviolet 
D) gamma rays,ultraviolet,infrared,radio 
E) infrared,ultraviolet,radio,gamma rays

Question 20

___________ is the quantum number which describes the shape of an atomic orbital.

Accepted Answer

The angula

Exam 6: Quantum Theory and the Electronic Structure of Atoms

What is the correct electron configuration for a germanium (Ge)atom?

Calculate the wavelength,in nanometers,of the light emitted by a hydrogen atom when its electron falls from the n = 7 to the n = 4 principal energy level.Recall that the energy levels of the H atom are given by En = -2.18 × 10-18 J (1/n2).(c = 3.00 × 108 m/s; h = 6.63 × 10-34 J • s)

Select the correct electron configuration for Te (Z = 52).

Calculate the wavelength associated with a 20Ne+ ion moving at a velocity of 2.0 × 105 m/s.The atomic mass of Ne-20 is 19.992 amu.(1 amu = 1.66 × 10-24 g and h = 6.63 × 10-34 J • s)

What is defined as the distance between identical points on successive waves?

A neutral atom in its ground state contains 28 electrons.This element is considered a __________ element,and has _______ electrons in orbitals with l = 2.

Which of the following is a correct set of quantum numbers for an electron in a 3d orbital?

The principal quantum number designates the size of the orbital.

What is the energy in joules of a mole of photons associated with red light of wavelength 7.00 × 102 nm? (c= 3.00 × 108 m/s; h = 6.63 × 10-34 J • s; NA = 6.022 × 1023 /mole)

Calculate the wavelength of a neutron that has a velocity of 200.cm/s.(mass of a neutron = 1.675 × 10-27 kg and h = 6.63 × 10-34 J • s)

A sprinter must average 24.0 mi/h to win a 100-m dash in 9.30 s.What is his wavelength at this speed if his mass is 84.5 kg ? (h = 6.63 × 10-34 J • s)

According to the Aufbau principle,the most stable arrangement of electrons places them in degenerate orbitals with the same spin.

Hund's rule states that the most stable arrangement of electrons in orbitals of equal energy is the one in which the number of electrons with parallel spin is ______________.

a.de Broglie

The de Broglie equation predicts that the wavelength (in m)of a proton moving at 1000.m/s is ________________.(h = 6.63 × 10-34 J • s; mass of a proton = 1.673 × 10-24 g)

What is the electron configuration for tungsten?

What type of configuration specifies the arrangement of electrons in the orbitals of an atom?

In the __________ series,nf = 1 and you observe the ultraviolet region of the electromagnetic spectrum.

Select the arrangement of electromagnetic radiation which starts with the lowest energy and increases to the greatest energy.

___________ is the quantum number which describes the shape of an atomic orbital.

Chemistry: the Central Science

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Stoichiometry Ratios of Combination

Reactions in Aqueous Solutions

Thermochemistry

Electron Configuration and the Periodic Table

Chemical Bonding I Basic Concepts

Chemical Bonding Ii Molecular Geometry and Bonding Theories

Gases

Intermolecular Forces and the Physical Properties of Liquids and Solids

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Chemical Equilibrium

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Acid-Base Equilibria and Solubility Equilibria

Entropy Free Energy and Equilibrium

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Calculate the wavelength,in nanometers,of the light emitted by a hydrogen atom when its electron falls from the n = 7 to the n = 4 principal energy level.Recall that the energy levels of the H atom are given by En = -2.18 × 10^-1⁸ J (1/n²).(c = 3.00 × 10⁸ m/s; h = 6.63 × 10^-34 J • s)

Calculate the wavelength associated with a ²⁰Ne⁺ ion moving at a velocity of 2.0 × 10⁵ m/s.The atomic mass of Ne-20 is 19.992 amu.(1 amu = 1.66 × 10^-24 g and h = 6.63 × 10^-34 J • s)

A neutral atom in its ground state contains 28 electrons.This element is considered a ____ element,and has _ electrons in orbitals with l = 2.

What is the energy in joules of a mole of photons associated with red light of wavelength 7.00 × 10² nm? (c= 3.00 × 10⁸ m/s; h = 6.63 × 10^-34 J • s; N_A = 6.022 × 10²³ /mole)

Calculate the wavelength of a neutron that has a velocity of 200.cm/s.(mass of a neutron = 1.675 × 10^-27 kg and h = 6.63 × 10^-34 J • s)

A sprinter must average 24.0 mi/h to win a 100-m dash in 9.30 s.What is his wavelength at this speed if his mass is 84.5 kg ? (h = 6.63 × 10^-34 J • s)

The de Broglie equation predicts that the wavelength (in m)of a proton moving at 1000.m/s is ________________.(h = 6.63 × 10^-34 J • s; mass of a proton = 1.673 × 10^-24 g)