Question 1

When waves of equal amplitude from two sources are out of phase when they interact,it is called

Accepted Answer

A) destructive interference. 
B) diffraction. 
C) constructive interference. 
D) effusion. 
E) amplitude. 
A) destructive interference. 
B) diffraction. 
C) constructive interference. 
D) effusion. 
E) amplitude.

Question 2

Calculate the frequency of the green light emitted by a hydrogen atom with a wavelength of 486.1 nm.

Accepted Answer

A) 1.462 × 1014 s-1 
B) 6.868 × 1014 s-1 
C) 4.332 × 1014 s-1 
D) 6.172 × 1014 s-1 
E) 1.626 × 1014 s-1 
A) 1.462 × 1014 s-1 
B) 6.868 × 1014 s-1 
C) 4.332 × 1014 s-1 
D) 6.172 × 1014 s-1 
E) 1.626 × 1014 s-1

Question 3

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

Accepted Answer

A) n = 3,l = 1,ml = 1,ms = + $\frac{1}{2}$ 
B) n = 3,l = 0,ml = 1,ms = - $\frac{1}{2}$ 
C) n = 3,l = 2,ml =1 ,ms = + $\frac{1}{2}$ 
D) n = 2,l = 1,ml = 1,ms = - $\frac{1}{2}$ 
E) n = 3,l =2 ,ml = 1,ms = - $\frac{1}{2}$ 
A) n = 3,l = 1,ml = 1,ms = + $\frac{1}{2}$ 
B) n = 3,l = 0,ml = 1,ms = - $\frac{1}{2}$ 
C) n = 3,l = 2,ml =1 ,ms = + $\frac{1}{2}$ 
D) n = 2,l = 1,ml = 1,ms = - $\frac{1}{2}$ 
E) n = 3,l =2 ,ml = 1,ms = - $\frac{1}{2}$

Question 4

Choose the valence orbital diagram that represents the ground state of Se2-.

Accepted Answer

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

Question 5

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

Accepted Answer

A) n = 4,l = 2,ml = 1,ms = - $\frac{1}{2}$ 
B) n = 4,l = 0,ml = 1,ms = + $\frac{1}{2}$ 
C) n = 4,l = 1,ml = 1,ms = - $\frac{1}{2}$ 
D) n = 3,l = 2,ml = 2,ms = + $\frac{1}{2}$ 
E) n = 5,l = 1,ml =-1 ,ms = + $\frac{1}{2}$ 
A) n = 4,l = 2,ml = 1,ms = - $\frac{1}{2}$ 
B) n = 4,l = 0,ml = 1,ms = + $\frac{1}{2}$ 
C) n = 4,l = 1,ml = 1,ms = - $\frac{1}{2}$ 
D) n = 3,l = 2,ml = 2,ms = + $\frac{1}{2}$ 
E) n = 5,l = 1,ml =-1 ,ms = + $\frac{1}{2}$

Question 6

Which of the following transitions (in a hydrogen atom)represent emission of the longest wavelength photon?

Accepted Answer

A) n = 1 to n = 2 
B) n = 3 to n = 1 
C) n = 3 to n = 4 
D) n = 4 to n = 2 
E) n = 5 to n = 4 
A) n = 1 to n = 2 
B) n = 3 to n = 1 
C) n = 3 to n = 4 
D) n = 4 to n = 2 
E) n = 5 to n = 4

Question 7

Which of the following statements is TRUE?

Accepted Answer

A) An orbital that penetrates into the region occupied by core electrons is less shielded from nuclear charge than an orbital that does not penetrate and therefore has a lower energy. 
B) An orbital that penetrates into the region occupied by core electrons is more shielded from nuclear charge than an orbital that does not penetrate and therefore has a lower energy. 
C) It is possible for two electrons in the same atom to have identical values for all four quantum numbers. 
D) Two electrons in the same orbital can have the same spin. 
A) An orbital that penetrates into the region occupied by core electrons is less shielded from nuclear charge than an orbital that does not penetrate and therefore has a lower energy. 
B) An orbital that penetrates into the region occupied by core electrons is more shielded from nuclear charge than an orbital that does not penetrate and therefore has a lower energy. 
C) It is possible for two electrons in the same atom to have identical values for all four quantum numbers. 
D) Two electrons in the same orbital can have the same spin.

Question 8

Determine the mass of a ball with a wavelength of 3.45 × 10-34 m and a velocity of 6.55 m s-1.

Accepted Answer

A) 0.293 g 
B) 12.6 g 
C) 293 g 
D) 346 g 
E) 3.41 g 
A) 0.293 g 
B) 12.6 g 
C) 293 g 
D) 346 g 
E) 3.41 g

Question 9

Which of the following statements is TRUE?

Accepted Answer

A) The principal quantum number (n)describes the shape of an orbital. 
B) The angular momentum quantum number (l)describes the the size and energy associated with an orbital. 
C) The magnetic quantum number (ml)describes the orientation of the orbital. 
D) An orbital is the path that an electron follows during its movement in an atom. 
A) The principal quantum number (n)describes the shape of an orbital. 
B) The angular momentum quantum number (l)describes the the size and energy associated with an orbital. 
C) The magnetic quantum number (ml)describes the orientation of the orbital. 
D) An orbital is the path that an electron follows during its movement in an atom.

Question 10

An FM radio station broadcasts electromagnetic radiation at a frequency of 100.5 MHz.The wavelength of this radiation is ________ m.

Accepted Answer

A) 3.015 × $10 ^ { 16 }$ 
B) 3.015 × $10 ^ { 10 }$ 
C) 0.3350 
D) 2.985 × $10 ^ { 6 }$ 
E) 2.985 
A) 3.015 × $10 ^ { 16 }$ 
B) 3.015 × $10 ^ { 10 }$ 
C) 0.3350 
D) 2.985 × $10 ^ { 6 }$ 
E) 2.985

Question 11

Give an example of a d orbital.

Accepted Answer

The answer of Give an example of a d orbital....

Question 12

Calculate the energy associated with an n = 2 to n = 5 transmission in a hydrogen atom.

Accepted Answer

A) 9.176 × 10-20 J 
B) 1.977 × 10-19 J 
C) 5.005 × 10-19 J 
D) 4.844 × 10-19 J 
E) 4.578 × 10-19 J 
A) 9.176 × 10-20 J 
B) 1.977 × 10-19 J 
C) 5.005 × 10-19 J 
D) 4.844 × 10-19 J 
E) 4.578 × 10-19 J

Question 13

Which of the following occurs as the wavelength of a photon increases?

Accepted Answer

A) The frequency decreases. 
B) The energy increases. 
C) The speed decreases. 
D) Planck's constant decreases. 
E) None of the above occurs as the wavelength of a photon increases. 
A) The frequency decreases. 
B) The energy increases. 
C) The speed decreases. 
D) Planck's constant decreases. 
E) None of the above occurs as the wavelength of a photon increases.

Question 14

The complete electron configuration of chromium,element 24,is ________.

Accepted Answer

A) 1s22s22p103s23p8 
B) 1s42s42p63s43p6 
C) 1s42s42p103s23p4 
D) 1s22s22p63s23p63d54s1 
E) 1s42s42p83s43p4 
A) 1s22s22p103s23p8 
B) 1s42s42p63s43p6 
C) 1s42s42p103s23p4 
D) 1s22s22p63s23p63d54s1 
E) 1s42s42p83s43p4

Question 15

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-1 
B) 12.3 m s-1 
C) 2.21 m s-1 
D) 4.98 m s-1 
E) 6.44 m s-1 
A) 8.81 m s-1 
B) 12.3 m s-1 
C) 2.21 m s-1 
D) 4.98 m s-1 
E) 6.44 m s-1

Question 16

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 
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 17

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

Accepted Answer

Four.The 2s and thre

Question 18

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

Question 19

How many of the following species are diamagnetic? 
Cs $\quad$Zr2+ $\quad$Al3+ $\quad$Hg2+

Accepted Answer

A) 1 
B) 3 
C) 0 
D) 2 
E) 4 
A) 1 
B) 3 
C) 0 
D) 2 
E) 4

Question 20

What is the maximum number of d orbitals that are possible in the same level?

Accepted Answer

A) 1 
B) 3 
C) 7 
D) 5 
E) 9 
A) 1 
B) 3 
C) 7 
D) 5 
E) 9

Exam 7: The Quantum-Mechanical Model of the Atom

When waves of equal amplitude from two sources are out of phase when they interact,it is called

Calculate the frequency of the green light emitted by a hydrogen atom with a wavelength of 486.1 nm.

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

Choose the valence orbital diagram that represents the ground state of Se2-.

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

Which of the following transitions (in a hydrogen atom)represent emission of the longest wavelength photon?

Which of the following statements is TRUE?

Determine the mass of a ball with a wavelength of 3.45 × 10-34 m and a velocity of 6.55 m s-1.

Which of the following statements is TRUE?

An FM radio station broadcasts electromagnetic radiation at a frequency of 100.5 MHz.The wavelength of this radiation is ________ m.

Give an example of a d orbital.

Calculate the energy associated with an n = 2 to n = 5 transmission in a hydrogen atom.

Which of the following occurs as the wavelength of a photon increases?

The complete electron configuration of chromium,element 24,is ________.

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

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

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

Identify the numbers for ml for a d orbital.

How many of the following species are diamagnetic? Cs \quad Zr2+ \quad Al3+ \quad Hg2+

What is the maximum number of d orbitals that are possible in the same level?

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Filters

Choose the valence orbital diagram that represents the ground state of Se²^-.

Determine the mass of a ball with a wavelength of 3.45 × 10^-34m and a velocity of 6.55 m s^-1.

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

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

Identify the numbers for m_l for a d orbital.

How many of the following species are diamagnetic? Cs $\quad$ Zr²⁺ $\quad$ Al³⁺ $\quad$ Hg²⁺