Electronic Structure Review

1
Electronic Structure Review

• To help you study for tomorrows quiz!

2
Question 1

• In the sublevel 2p4, what quantum number does
  the 2 correspond to?

3
Question 1

• In the sublevel 2p4, what quantum number does
  the 2 correspond to?
• n (the principle energy level)

4
Question 2

• The sublevel of an electron determines what
  property of the electron?

5
Question 2

• The sublevel of an electron determines what
  property of the electron?
• the shape of the path of the electron

6
Question 3

• Atoms become ions to try to obtain an electron
  configuration similar to a noble gas. Why?

7
Question 3

• Atoms become ions to try to obtain an electron
  configuration similar to a noble gas. Why?
• all of the s and p sublevels are full
  (which means the atom is more stable!)

8
Question 4

• What is the unabbreviated electron configuration
  for zirconium (40)?

9
Question 4

• What is the unabbreviated electron configuration
  for zirconium (40)?
• 1s22s22p63s23p64s23d104p65s24d2

10
Question 5

• What is the abbreviated electron configuration
  for tin (50)?

11
Question 5

• What is the abbreviated electron configuration
  for tin (50)?
• Kr 5s24d105p2

12
Question 6

• Which is listed first in a configuration 6s or
  4f? Briefly explain why.

13
Question 6

• Which is listed first in a configuration 6s or
  4f? Briefly explain why.
• 6s it has a lower energy

14
Question 7

• How many valence electrons does Bismuth (83)
  have?

15
Question 7

• How many valence electrons does Bismuth (83)
  have?
• 5 Xe 6s24f145d106p3

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Question 8

• Where are valence electrons found in an atom in
  relation to where other electrons are?

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Question 8

• Where are valence electrons found in an atom in
  relation to where other electrons are?
• outermost principle energy level

18
Question 9

• What is the charge of aluminum (13) when it
  becomes an ion?

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Question 9

• What is the charge of aluminum (13) when it
  becomes an ion?
• 3 (it loses 3 electrons it wants to be
  like neon)

20
Question 10

• What type of spin must electrons have when they
  reside in the same orbital?

21
Question 10

• What type of spin must electrons have when they
  reside in the same orbital?
• opposing spins

22
Question 11

• How many electrons can a 6d sublevel hold?

23
Question 11

• How many electrons can a 6d sublevel hold?
• 10 (any d sublevel can hold 10 electrons)

24
Question 12

• How many orbitals does a p sublevel have?

25
Question 12

• How many orbitals does a p sublevel have?
• 3 (you would draw 3 boxes, or the ml values
  would be 1, 0, 1)

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Question 13

• What is the last sublevel with the number of
  electrons listed in the electron configuration
  for palladium (46)?

27
Question 13

• What is the last sublevel with the number of
  electrons listed in the electron configuration
  for palladium (46)?
• 4d8

28
Question 14

• An atom has 6 electrons in its d sublevel. How
  many of the orbitals in this sublevel are half
  filled?

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Question 14

• An atom has 6 electrons in its d sublevel. How
  many of the orbitals in this sublevel are half
  filled?
• 4 (a d sublevel has 5 orbitals)

30
Question 15

• What is the name of the sublevel when l 1?

31
Question 15

• What is the name of the sublevel when l 1?
• p (look back at your first set of notes if
  you are foggy on this)

32
Question 16

• How many electrons can fit into principle energy
  level 4?

33
Question 16

• How many electrons can fit into principle energy
  level 4?
• 32 (2 in s, 6 in p, 10 in d, and 14 in
  f)

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Question 17

• How many s electrons does Francium (87) have?

35
Question 17

• How many s electrons does Francium (87) have?
• 13 (2 in 1s, 2 in 2s, 2 in 3s, 2 in
  4s, 2 in 5s, 2 in 6s, and 1 in 7s)

36
Question 18

• How many orbitals does the third principle energy
  level have?

37
Question 18

• How many orbitals does the third principle energy
  level have?
• 9 (1 in 3s, 3 in 3p, and 5 in 3d)

38
Question 19

• How many electrons will Boron (5) lose to gain a
  configuration like a noble gas?

39
Question 19

• How many electrons will Boron (5) lose to gain a
  configuration like a noble gas?
• 3 (if it loses 3 electrons it has an
  identical configuration to Helium)

40
Question 20

• How many 4f electrons does Tungsten (74) have?

41
Question 20

• How many 4f electrons does Tungsten (74) have?
• 14 (the 4f sublevel is full in tungstens
  configuration)

42
Question 21

• Is an electron with n 2, l 3 possible? Why
  or why not?

43
Question 21

• Is an electron with n 2, l 3 possible? Why
  or why not?
• No the sublevel 2f does not exist

44
Question 22

• What is the most likely charge on phosphorus when
  it becomes an ion?

45
Question 22

• What is the most likely charge on phosphorus when
  it becomes an ion?
• 3 (use the Column Rule to figure this out)

46
Question 23

• How many unpaired electrons does Vanadium (23)
  have in its outermost sublevel?

47
Question 23

• How many unpaired electrons does Vanadium (23)
  have in its outermost sublevel?
• 3 (the last sublevel is 3d3 and a d
  sublevel has 5 orbitals to fill)

48
Question 24

• What is the unabbreviated electron configuration
  for Nickel (28)?

49
Question 24

• What is the unabbreviated electron configuration
  for Nickel (28)?
• 1s22s22p63s23p64s23d8

50
Question 25

• Is the following set of quantum numbers allowed?
  If not, which number is not feasible?
• n 2, l 0, ml 1

51
Question 25

• Is the following set of quantum numbers allowed?
  If not, which number is not feasible?
• n 2, l 0, ml 1
• No (the orbital is not possible for l 0)

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Question 26

• Is the following set of quantum numbers allowed?
  If not, which number is not feasible?
• n 4, l 1, ml 0

53
Question 26

• Is the following set of quantum numbers allowed?
  If not, which number is not feasible?
• n 4, l 1, ml 0
• Yes (this is referring to the 4p sublevel)

54
Question 27

• What noble gas has an identical configuration to
  Si4?

55
Question 27

• What noble gas has an identical configuration to
  Si4?
• Neon (when silicon loses 4 electrons, it has
  a total electron count of 10)

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Question 28

• What is the abbreviated electron configuration
  for Si4?

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Question 28

• What is the abbreviated electron configuration
  for Si4?
• He 2s22p6

58
Question 29

• How many 5s electrons are in Rubidium (37)?

59
Question 29

• How many 5s electrons are in Rubidium (37)?
• 1 (the configuration ends with 5s1)

60
Question 30

• How many sublevels does the third principle
  energy level have?

61
Question 30

• How many sublevels does the third principle
  energy level have?
• 3 (it has 3s, 3p, and 3d there is no
  3f sublevel)