Question 1

Place the following types of electromagnetic radiation in order of increasing wavelength. ultraviolet light gamma rays radio waves

Accepted Answer

A) gamma rays < radio waves < ultraviolet light 
B) radio waves < ultraviolet light < gamma rays 
C) radio waves < gamma rays < ultraviolet light 
D) ultraviolet light < gamma rays < radio waves 
E) gamma rays < ultraviolet light < radio waves 
A) gamma rays < radio waves < ultraviolet light 
B) radio waves < ultraviolet light < gamma rays 
C) radio waves < gamma rays < ultraviolet light 
D) ultraviolet light < gamma rays < radio waves 
E) gamma rays < ultraviolet light < radio waves

Question 2

Give the number of valence electrons for Br-.

Accepted Answer

A) 16 
B) 18 
C) 6 
D) 8 
E) 7 
A) 16 
B) 18 
C) 6 
D) 8 
E) 7

Question 3

Calculate the wavelength (in nm)of the red light emitted by a neon sign with a frequency of 4.74 × 1014 Hz.

Accepted Answer

A) 633 nm 
B) 158 nm 
C) 142 nm 
D) 704 nm 
E) 466 nm 
A) 633 nm 
B) 158 nm 
C) 142 nm 
D) 704 nm 
E) 466 nm

Question 4

A sunburn is caused by overexposure to ________ radiation.

Accepted Answer

A) ultraviolet 
B) gamma 
C) microwave 
D) X-ray 
E) radio 
A) ultraviolet 
B) gamma 
C) microwave 
D) X-ray 
E) radio

Question 5

Identify the set of four quantum numbers that could represent the last electron added (using the aufbau principle)to the Sr atom.

Accepted Answer

A) n = 5,l = 0,ml = 0,ms = - $\frac{1}{2}$ 
B) n = 4,l = 1,ml = 1,ms = - $\frac{1}{2}$ 
C) n = 5,l = 1,ml = 0,ms = + $\frac{1}{2}$ 
D) n = 4,l = 1,ml = -1,ms = + $\frac{1}{2}$ 
E) n = 5,l = 1,ml =1 ,ms = - $\frac{1}{2}$ 
A) n = 5,l = 0,ml = 0,ms = - $\frac{1}{2}$ 
B) n = 4,l = 1,ml = 1,ms = - $\frac{1}{2}$ 
C) n = 5,l = 1,ml = 0,ms = + $\frac{1}{2}$ 
D) n = 4,l = 1,ml = -1,ms = + $\frac{1}{2}$ 
E) n = 5,l = 1,ml =1 ,ms = - $\frac{1}{2}$

Question 6

Which ion does not have a noble gas configuration in its ground state?

Accepted Answer

A) Sc3+ 
B) Al3+ 
C) Ga3+ 
D) As3- 
A) Sc3+ 
B) Al3+ 
C) Ga3+ 
D) As3-

Question 7

How much energy (in kJ)do 3.0 moles of photons,all with a wavelength of 655 nm,contain?

Accepted Answer

A) 183 kJ 
B) 303 kJ 
C) 394 kJ 
D) 548 kJ 
E) 254 kJ 
A) 183 kJ 
B) 303 kJ 
C) 394 kJ 
D) 548 kJ 
E) 254 kJ

Question 8

Identify the set of four quantum numbers that could represent the electron lost to form the Rb ION from the Rb atom.

Accepted Answer

A) n = 6,l = 0,ml = 0,ms = - $\frac{1}{2}$ 
B) n = 4,l = 1,ml = 1,ms = - $\frac{1}{2}$ 
C) n = 5,l = 1,ml = 0,ms = + $\frac{1}{2}$ 
D) n = 4,l = 1,ml = 0,ms = - $\frac{1}{2}$ 
E) n = 5,l = 0,ml = 0,ms = + $\frac{1}{2}$ 
A) n = 6,l = 0,ml = 0,ms = - $\frac{1}{2}$ 
B) n = 4,l = 1,ml = 1,ms = - $\frac{1}{2}$ 
C) n = 5,l = 1,ml = 0,ms = + $\frac{1}{2}$ 
D) n = 4,l = 1,ml = 0,ms = - $\frac{1}{2}$ 
E) n = 5,l = 0,ml = 0,ms = + $\frac{1}{2}$

Question 9

Identify the colour that has a wavelength of 700 nm.

Accepted Answer

A) blue 
B) green 
C) red 
D) yellow 
A) blue 
B) green 
C) red 
D) yellow

Question 10

Calculate the final orbital,nf,of an electron in a hydrogen atom that starts at orbital n = 4 and undergoes an energy transition of -1.06 × 10-19 J.

Accepted Answer

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

Question 11

Identify the ground-state electron configuration for the ion of Ba.

Accepted Answer

A) [Kr]5s25p6 
B) [Kr]5s24d105p66s26p2 
C) [Kr]5s24d105p66s1 
D) [Kr]5s24d105p66s2 
E) [Kr]5s24d105p6 
A) [Kr]5s25p6 
B) [Kr]5s24d105p66s26p2 
C) [Kr]5s24d105p66s1 
D) [Kr]5s24d105p66s2 
E) [Kr]5s24d105p6

Question 12

Which of the following quantum numbers describes the size and energy of an orbital?

Accepted Answer

A) magnetic quantum number 
B) principal quantum number 
C) angular momentum quantum number 
D) spin quantum number 
E) Schrödinger quantum number 
A) magnetic quantum number 
B) principal quantum number 
C) angular momentum quantum number 
D) spin quantum number 
E) Schrödinger quantum number

Question 13

Calculate the energy of an electron in the orbital n = 5 of a hydrogen atom.

Accepted Answer

A) -1.08 × 10-19 J 
B) 8.72 × 10-20 J 
C) 1.08 × 10-19 J 
D) -8.72 × 10-20 J 
E) -7.21 × 10-20 J 
A) -1.08 × 10-19 J 
B) 8.72 × 10-20 J 
C) 1.08 × 10-19 J 
D) -8.72 × 10-20 J 
E) -7.21 × 10-20 J

Question 14

What are the possible orbitals for n = 3?

Accepted Answer

A) s,p,d 
B) s,p,d,f 
C) s 
D) s,p 
A) s,p,d 
B) s,p,d,f 
C) s 
D) s,p

Question 15

On the electromagnetic spectrum,visible light is immediately between two other wavelengths.Name them.

Accepted Answer

A) infrared and X-ray 
B) radio and microwave 
C) gamma ray and ultraviolet 
D) microwave and X-ray 
E) infrared and ultraviolet 
A) infrared and X-ray 
B) radio and microwave 
C) gamma ray and ultraviolet 
D) microwave and X-ray 
E) infrared and ultraviolet

Question 16

How are 3p orbitals different from the 2p orbitals?

Accepted Answer

They are larger in s

Question 17

How many different values of ml are possible in the 3d sublevel?

Accepted Answer

A) 2 
B) 1 
C) 3 
D) 5 
E) 7 
A) 2 
B) 1 
C) 3 
D) 5 
E) 7

Question 18

Determine the end (final)value of n in a hydrogen atom transition if the electron starts in n = 2 and the atom absorbs a photon of light with a frequency of 4.57 × 1014 Hz.

Accepted Answer

A) 3 
B) 1 
C) 4 
D) 6 
E) 7 
A) 3 
B) 1 
C) 4 
D) 6 
E) 7

Question 19

Identify the ground-state electron configuration for Se2-.

Accepted Answer

A) [Ar]4s23d104p4 
B) [Ar]4s23d104p2 
C) [Ar]4s24p6 
D) [Ar]4s23d104p6 
E) [Ar]4s23d84p6 
A) [Ar]4s23d104p4 
B) [Ar]4s23d104p2 
C) [Ar]4s24p6 
D) [Ar]4s23d104p6 
E) [Ar]4s23d84p6

Question 20

Give the ground-state electron configuration for Br⁻.

Accepted Answer

A) [Ar]4s23d104p6 
B) [Ar]4s23d104p5 
C) [Ar]4s24p6 
D) [Ar]4s24d104p6 
E) [Ar]4s23d104p4 
A) [Ar]4s23d104p6 
B) [Ar]4s23d104p5 
C) [Ar]4s24p6 
D) [Ar]4s24d104p6 
E) [Ar]4s23d104p4

Exam 7: The Quantum-Mechanical Model of the Atom

Place the following types of electromagnetic radiation in order of increasing wavelength. ultraviolet light gamma rays radio waves

Give the number of valence electrons for Br-.

Calculate the wavelength (in nm)of the red light emitted by a neon sign with a frequency of 4.74 × 1014 Hz.

A sunburn is caused by overexposure to ________ radiation.

Identify the set of four quantum numbers that could represent the last electron added (using the aufbau principle)to the Sr atom.

Which ion does not have a noble gas configuration in its ground state?

How much energy (in kJ)do 3.0 moles of photons,all with a wavelength of 655 nm,contain?

Identify the set of four quantum numbers that could represent the electron lost to form the Rb ION from the Rb atom.

Identify the colour that has a wavelength of 700 nm.

Calculate the final orbital,nf,of an electron in a hydrogen atom that starts at orbital n = 4 and undergoes an energy transition of -1.06 × 10-19 J.

Identify the ground-state electron configuration for the ion of Ba.

Which of the following quantum numbers describes the size and energy of an orbital?

Calculate the energy of an electron in the orbital n = 5 of a hydrogen atom.

What are the possible orbitals for n = 3?

On the electromagnetic spectrum,visible light is immediately between two other wavelengths.Name them.

How are 3p orbitals different from the 2p orbitals?

How many different values of ml are possible in the 3d sublevel?

Determine the end (final)value of n in a hydrogen atom transition if the electron starts in n = 2 and the atom absorbs a photon of light with a frequency of 4.57 × 1014 Hz.

Identify the ground-state electron configuration for Se2-.

Give the ground-state electron configuration for Br⁻.

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Filters

Give the number of valence electrons for Br^-.

Calculate the wavelength (in nm)of the red light emitted by a neon sign with a frequency of 4.74 × 10¹⁴ Hz.

Calculate the final orbital,n_f,of an electron in a hydrogen atom that starts at orbital n = 4 and undergoes an energy transition of -1.06 × 10^-19 J.

How many different values of m_l are possible in the 3d sublevel?

Determine the end (final)value of n in a hydrogen atom transition if the electron starts in n = 2 and the atom absorbs a photon of light with a frequency of 4.57 × 10¹⁴ Hz.

Identify the ground-state electron configuration for Se²^-.