Question 1

Determine the energy change associated with the transition from n=2 to n=5 in the hydrogen atom.

Accepted Answer

A) -2.18 × 10-19 J 
B) +6.54 × 10-19 J 
C) +4.58 × 10-19 J 
D) -1.53 × 10-19 J 
E) +3.76 × 10-19 J

Question 2

Match the following.
-n = 5 to n = 3

Accepted Answer

A) 103 nm 
B) 657 nm 
C) 7460 nm 
D) 122 nm 
E) 1280 nm

Question 3

Determine the shortest frequency of light required to remove an electron from a sample of Ti metal,if the binding energy of titanium is 3.14 × 103 kJ/mol.

Accepted Answer

A) 7.87 × 1015 Hz 
B) 4.74 × 1015 Hz 
C) 2.11 × 1015 Hz 
D) 1.27 × 1015 Hz 
E) 6.19 × 1015 Hz

Question 4

How many orbitals are contained in the n = 2 level? Give thel and m_l values of each of them.

Accepted Answer

The answer of How many orbitals are contained in the...

Question 5

UV-rays from sunlight may cause sunburn.However,infrared lamps are good for relieving muscle pain.Which of the following is a correct statement about UV-rays?

Accepted Answer

A) UV-rays have more energy than visible rays. 
B) UV-rays have less energy than infrared rays. 
C) UV-rays have lower frequency than infrared rays. 
D) UV-rays have longer wavelength than visible rays.

Question 6

What are the possible orbitals for n = 3?

Accepted Answer

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

Question 7

Give the numbers for ml for a d orbital.

Accepted Answer

A) 0,1,2,3,4 
B) 1,2,3,4,5 
C) 1,2,3 
D) -2,-1,0,1,2

Question 8

Calculate the energy of the red light emitted by a neon atom with a wavelength of 703.2 nm.

Accepted Answer

A) 3.54 × 10-19 J 
B) 4.27 × 10-19 J 
C) 2.34 × 10-19 J 
D) 6.45 × 10-19 J 
E) 2.83 × 10-19 J

Question 9

Define constructive interference.

Accepted Answer

The answer of Define constructive interference....

Question 10

Electromagnetic radiation with a wavelength of 531 nm appears as green light to the human eye.The energy of one photon of this light is 3.74 × 10-19 J.Thus,a laser that emits 1.3 × 10-2 J of energy in a pulse of light at this wavelength produces ________ photons in each pulse.

Accepted Answer

A) 2.9 × 10-17 
B) 9.2 × 10-24 
C) 1.8 × 1019 
D) 3.5 × 1016 
E) 6.5 × 1013

Question 11

How many different values of ml are possible in the 4f sublevel?

Accepted Answer

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

Question 12

What are the possible values of n and ml for an electron in a 4d orbital?

Accepted Answer

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

Question 13

What total energy (in kJ)is contained in 1.0 mol of photons,all with a frequency of 2.75 × 1014 Hz?

Accepted Answer

A) 182 kJ 
B) 219 kJ 
C) 457 kJ 
D) 326 kJ 
E) 110 kJ

Question 14

Describe the shape of one of the d orbitals.

Accepted Answer

A) four lobes in one plane 
B) three lobes in one plane 
C) two lobes in one plane 
D) one sphere

Question 15

Match the following.
-n = 3 to n = 2

Accepted Answer

A) 103 nm 
B) 657 nm 
C) 7460 nm 
D) 122 nm 
E) 1280 nm

Question 16

Place the following types of electromagnetic radiation in order of increasing frequency.
Visible light microwaves X-rays

Accepted Answer

A) microwaves < visible light < X-rays 
B) X-rays < visible light < microwaves 
C) microwaves < X-rays < visible light 
D) X-rays < microwaves < visible light 
E) visible light < X-rays < microwaves

Question 17

How many photons are contained in a flash of green light (525 nm)that contains 189 kJ of energy?

Accepted Answer

A) 5.67 × 1023 photons 
B) 2.01 × 1024 photons 
C) 1.25 × 1031 photons 
D) 4.99 × 1023 photons 
E) 7.99 × 1030 photons

Question 18

Determine the velocity of a medicine ball (m = 10.0 kg)with a wavelength of 1.33 × 10-35 m.

Accepted Answer

A) 8.81 m/s 
B) 12.3 m/s 
C) 2.21 m/s 
D) 4.98 m/s 
E) 6.44 m/s

Question 19

Which of the following visible colors of light has the longest wavelength?

Accepted Answer

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

Question 20

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

Exam 7: The Quantum-Mechanical Model of the Atom

Determine the energy change associated with the transition from n=2 to n=5 in the hydrogen atom.

Match the following. -n = 5 to n = 3

Determine the shortest frequency of light required to remove an electron from a sample of Ti metal,if the binding energy of titanium is 3.14 × 10³ kJ/mol.

How many orbitals are contained in the n = 2 level? Give thel and m_l values of each of them.

UV-rays from sunlight may cause sunburn.However,infrared lamps are good for relieving muscle pain.Which of the following is a correct statement about UV-rays?

What are the possible orbitals for n = 3?

Give the numbers for m_l for a d orbital.

Calculate the energy of the red light emitted by a neon atom with a wavelength of 703.2 nm.

Define constructive interference.

Electromagnetic radiation with a wavelength of 531 nm appears as green light to the human eye.The energy of one photon of this light is 3.74 × 10^-19 J.Thus,a laser that emits 1.3 × 10^-2 J of energy in a pulse of light at this wavelength produces ________ photons in each pulse.

How many different values of m_l are possible in the 4f sublevel?

What are the possible values of n and m_l for an electron in a 4d orbital?

What total energy (in kJ) is contained in 1.0 mol of photons,all with a frequency of 2.75 × 10¹⁴ Hz?

Describe the shape of one of the d orbitals.

Match the following. -n = 3 to n = 2

Place the following types of electromagnetic radiation in order of increasing frequency. Visible light microwaves X-rays

How many photons are contained in a flash of green light (525 nm) that contains 189 kJ of energy?

Determine the velocity of a medicine ball (m = 10.0 kg) with a wavelength of 1.33 × 10^-35 m.

Which of the following visible colors of light has the longest wavelength?

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

Exam 7: The Quantum-Mechanical Model of the Atom

Determine the energy change associated with the transition from n=2 to n=5 in the hydrogen atom.

Match the following. -n = 5 to n = 3

Determine the shortest frequency of light required to remove an electron from a sample of Ti metal,if the binding energy of titanium is 3.14 × 103 kJ/mol.

How many orbitals are contained in the n = 2 level? Give the l and ml values of each of them.

UV-rays from sunlight may cause sunburn.However,infrared lamps are good for relieving muscle pain.Which of the following is a correct statement about UV-rays?

What are the possible orbitals for n = 3?

Give the numbers for ml for a d orbital.

Calculate the energy of the red light emitted by a neon atom with a wavelength of 703.2 nm.

Define constructive interference.

Electromagnetic radiation with a wavelength of 531 nm appears as green light to the human eye.The energy of one photon of this light is 3.74 × 10-19 J.Thus,a laser that emits 1.3 × 10-2 J of energy in a pulse of light at this wavelength produces ________ photons in each pulse.

How many different values of ml are possible in the 4f sublevel?

What are the possible values of n and ml for an electron in a 4d orbital?

What total energy (in kJ) is contained in 1.0 mol of photons,all with a frequency of 2.75 × 1014 Hz?

Describe the shape of one of the d orbitals.

Match the following. -n = 3 to n = 2

Place the following types of electromagnetic radiation in order of increasing frequency. Visible light microwaves X-rays

How many photons are contained in a flash of green light (525 nm) that contains 189 kJ of energy?

Determine the velocity of a medicine ball (m = 10.0 kg) with a wavelength of 1.33 × 10-35 m.

Which of the following visible colors of light has the longest wavelength?

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

Determine the shortest frequency of light required to remove an electron from a sample of Ti metal,if the binding energy of titanium is 3.14 × 10³ kJ/mol.

How many orbitals are contained in the n = 2 level? Give thel and m_l values of each of them.

Give the numbers for m_l for a d orbital.

Electromagnetic radiation with a wavelength of 531 nm appears as green light to the human eye.The energy of one photon of this light is 3.74 × 10^-19 J.Thus,a laser that emits 1.3 × 10^-2 J of energy in a pulse of light at this wavelength produces ________ photons in each pulse.

How many different values of m_l are possible in the 4f sublevel?

What are the possible values of n and m_l for an electron in a 4d orbital?

What total energy (in kJ) is contained in 1.0 mol of photons,all with a frequency of 2.75 × 10¹⁴ Hz?

Determine the velocity of a medicine ball (m = 10.0 kg) with a wavelength of 1.33 × 10^-35 m.