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Chemistry: Chapter 6 Study Guide

front 1

1) Which one of the following is correct?

A) ν + λ = c

B) ν ÷ λ = c

C) ν = cλ

D) λ = c ν

E) νλ = c

back 1

E) νλ = c

front 2

2) Of the following, ________ radiation has the shortest wavelength.

A) X-ray

B) radio

C) microwave

D) ultraviolet

E) infrared

back 2

A) X-ray

front 3

3) The photoelectric effect is ________.

A) the total reflection of light by metals giving them their typical luster

B) the production of current by silicon solar cells when exposed to sunlight

C) the ejection of electrons by a metal when struck with light of sufficient energy

D) the darkening of photographic film when exposed to an electric field

E) a relativistic effect

back 3

C) the ejection of electrons by a metal when struck with light of sufficient energy

front 4

4) Which one of the following is considered to be ionizing radiation?

A) visible light

B) radio waves

C) X-rays

D) microwaves

E) infrared radiation

back 4

C) X-rays

front 5

5) Of the following transitions in the Bohr hydrogen atom, the ________ transition results in the emission of the lowest-energy photon.

A) n = 1 → n = 6

B) n = 6 → n = 1

C) n = 6 → n = 3

D) n = 3 → n = 6

E) n = 1 → n = 4

back 5

C) n = 6 → n = 3

front 6

6) In the Bohr model of the atom, ________.

A) electrons travel in circular paths called orbitals

B) electrons can have any energy

C) electron energies are quantized

D) electron paths are controlled by probability

E) both A and C

back 6

C) electron energies are quantized

front 7

7) According to the Heisenberg Uncertainty Principle, it is impossible to know precisely both the position and the ________ of an electron.

A) mass

B) color

C) momentum

D) shape

E) charge

back 7

C) momentum

front 8

8) All of the orbitals in a given electron shell have the same value as the ________ quantum number.

A) principal

B) angular momentum

C) magnetic

D) spin

E) psi

back 8

A) principal

front 9

9) The de Broglie wavelength of a ________ will have the shortest wavelength when traveling at 30 cm/s.

A) marble

B) car

C) planet

D) uranium atom

E) hydrogen atom

back 9

C) planet

front 10

10) The uncertainty principle states that ________.

A) matter and energy are really the same thing

B) it is impossible to know anything with certainty

C) it is impossible to know the exact position and momentum of an electron

D) there can only be one uncertain digit in a reported number

E) it is impossible to know how many electrons there are in an atom

back 10

C) it is impossible to know the exact position and momentum of an electron

front 11

11) All of the orbitals in a given subshell have the same value as the ________ quantum number.

A) principal

B) angular momentum

C) magnetic

D) A and B

E) B and C

back 11

D) A and B

front 12

12) Which one of the following is not a valid value for the magnetic quantum number of an electron in a 5d subshell?

A) 2

B) 3

C) 0

D) 1

E) -1

back 12

B) 3

front 13

13) Which of the subshells below do not exist due to the constraints upon the angular momentum quantum number?

A) 2d

B) 2s

C) 2p

D) all of the above

E) none of the above

back 13

E) none of the above

front 14

14) Which of the subshells below do not exist due to the constraints upon the angular momentum quantum number?

A) 4f

B) 4d

C) 4p

D) 4s

E) none of the above

back 14

E) none of the above

front 15

15) An electron cannot have the quantum numbers n = ________, l = ________, ml = ________.

A) 2, 0, 0

B) 2, 1, -1

C) 3, 1, -1

D) 1, 1, 1

E) 3, 2, 1

back 15

D) 1, 1, 1

front 16

16) An electron cannot have the quantum numbers n = ________, l = ________, ml = ________.

A) 6, 1, 0

B) 3, 2, 3

C) 3, 2, -2

D) 1, 0, 0

E) 3, 2, 1

back 16

B) 3, 2, 3

front 17

17) Which one of the following is an incorrect subshell notation?

A) 4f

B) 2d

C) 3s

D) 2p

E) 3d

back 17

B) 2d

front 18

18) Which one of the following is an incorrect orbital notation?

A) 2s

B) 3py

C) 3f

D) 4dxy

E) 4s

back 18

C) 3f

front 19

19) Which quantum number determines the energy of an electron in a hydrogen atom?

A) n

B) E

C) ml

D) l

E) n and l

back 19

A) n

front 20

20) Which one of the quantum numbers does not result from the solution of the Schrodinger equation?

A) principal

B) azimuthal

C) magnetic

D) spin

E) angular momentum

back 20

D) spin

front 21

21) Which quantum numbers must be the same for the orbitals that they designate to be degenerate in a one-electron system (such as hydrogen)?

A) n, l, and ml

B) n and l only

C) l and ml

D) ml only

E) n only

back 21

E) n only

front 22

22) In a px orbital, the subscript x denotes the ________.

A) energy of the electron

B) spin of the electrons

C) probability of the shell

D) size of the orbital

E) axis along which the orbital is aligned

back 22

E) axis along which the orbital is aligned

front 23

23) The ________ orbital is degenerate with 5py in a many-electron atom.

A) 5s

B) 5px

C) 4py

D) 5dxy

E) 5d2

back 23

B) 5px

front 24

24) Which one of the following orbitals can hold two electrons?

A) 2px

B) 3s

C) 4dxy

D) all of the above

E) none of the above

back 24

D) all of the above

front 25

25) Which quantum numbers must be the same for the orbitals that they designate to be degenerate in a many-electron system?

A) n, l, and ml

B) n only

C) n, l, ml, and ms

D) ms only

E) n and l only

back 25

E) n and l only

front 26

26) Which of the following is not a valid set of four quantum numbers? (n, l, ml, ms)

A) 2, 0, 0, +1/2

B) 2, 1, 0, -1/2

C) 3, 1, -1, -1/2

D) 1, 0, 0, +1/2

E) 1, 1, 0, +1/2

back 26

A) 2, 0, 0, +1/2

front 27

27) Which of the following is a valid set of four quantum numbers? (n, l, ml, ms)
A) 2, 1, 0, +1/2
B) 2, 2, 1, -1/2
C) 1, 0, 1, +1/2
D) 2, 1, +2, +1/2
E) 1, 1, 0, -1/2

back 27

A) 2, 1, 0, +1/2

front 28

31) The ground state electron configuration of Ga is ________.

A) 1s22s23s23p64s23d104p1

B) 1s22s22p63s23p64s24d104p1

C) 1s22s22p63s23p64s23d104p1

D) 1s22s22p63s23p64s23d104d1

E) [Ar]4s23d11

back 28

C) 1s22s22p63s23p64s23d104p1

front 29

32) The ground-state electron configuration of the element ________ is [Kr]5s14d5.

A) Nb

B) Mo

C) Cr

D) Mn

E) Tc

back 29

B) Mo

front 30

33) The ground-state electron configuration of ________ is [Ar]4s13d5.

A) V

B) Mn

C) Fe

D) Cr

E) K

back 30

D) Cr

front 31

34) Which one of the following configurations depicts an excited oxygen atom?

A) 1s22s22p2

B) 1s22s22p23s2

C) 1s22s22p1

D) 1s22s22p4

E) [He]2s22p4

back 31

B) 1s22s22p23s2

front 32

38) The ground-state configuration of fluorine is ________.

A) [He]2s22p2

B) [He]2s22p3

C) [He]2s22p4

D) [He]22s22p5

E) [He]2s22p6

back 32

D) [He]22s22p5

front 33

39) The lowest orbital energy is reached when the number of electrons with the same spin is maximized. This statement describes ________.

A) Pauli Exclusion Principle

B) Planck's constant

C) deBroglie hypothesis

D) Heisenberg Uncertainty Principle

E) Hund's rule

back 33

E) Hund's rule

front 34

40) Which of the following elements has a ground-state electron configuration different from the predicted one?

A) Cu

B) Ca

C) Xe

D) Cl

E) Ti

back 34

A) Cu

front 35

41) Which two elements have the same ground-state electron configuration?

A) Pd and Pt

B) Cu and Ag

C) Fe and Cu

D) Cl and Ar

E) No two elements have the same ground-state electron configuration.

back 35

E) No two elements have the same ground-state electron configuration.

front 36

42) How many different principal quantum numbers can be found in the ground-state electron configuration of nickel?

A) 2

B) 3

C) 4

D) 5

E) 6

back 36

C) 4

front 37

43) The valence shell of the element X contains 2 electrons in a 5s subshell. Below that shell, element X has a partially filled 4d subshell. What type of element is X?

A) main group element

B) chalcogen

C) halogen

D) transition metal

E) alkali metal

back 37

D) transition metal

front 38

44) Electromagnetic radiation travels through vacuum at a speed of ________ m/s.

A) 186,000

B) 125

C) 3.00 × 108

D) 10,000

E) It depends on wavelength.

back 38

C) 3.00 × 108

front 39

45) The wavelength of light that has a frequency of 1.20 × 1013 s-1 is ________ m.

A) 25.0

B) 2.50 × 10-5

C) 0.0400

D) 12.0

E) 2.5

back 39

B) 2.50 × 10-5

front 40

46) The wavelength of light that has a frequency of 1.66 × 109 s-1 is ________ m.

A) 0.181

B) 5.53

C) 2.00 × 10-9

D) 5.53 × 108

E) none of the above

back 40

A) 0.181

front 41

47) Ham radio operators often broadcast on the 6-meter band. The frequency of this electromagnetic radiation is ________ MHz.

A) 500

B) 200

C) 50

D) 20

E) 2.0

back 41

C) 50

front 42

48) The energy of a photon that has a wavelength of 8.33 × 10-6 m is ________ J.

A) 2.20 × 10-26

B) 3.60 × 1013

C) 2.39 × 10-20

D) 2.7 × 109

E) 4.5 × 10-25

back 42

C) 2.39 × 10-20

front 43

49) What color of visible light has the longest wavelength?

A) blue

B) violet

C) red

D) yellow

E) green

back 43

C) red

front 44

50) The energy (J) required for an electronic transition in a Bohr hydrogen atom from n = 2 to n = 3 is ________ J.

A) 4.00 × 10-19

B) 3.00 × 10-19

C) -3.00 × 10-19

D) -7.90 × 10-19

E) 4.60 × 1014

back 44

B) 3.00 × 10-19

front 45

51) The energy (J) required for an electronic transition in a Bohr hydrogen atom from n = 1 to n = 3 is ________ J.

A) -8.90 × 10-1

B) 3.00 × 10-19

C) -3.00 × 10-19

D) 1.94 × 10-18

back 45

D) 1.94 × 10-18