Transcript Topic IX Electron Configurations, Magnetism Keys, Group

Topic IX
Electron Configurations, Magnetism
Keys, Group Work;
Homework Assignments
Group Work Keys
• 9.1 Configuration, Br
• 9.2 Configuration, Ag, Te
• 9.3 Configuration, Rf
• 9.4 Ion Configurations
• 9.5 Paramagnetic or
Diamagnetic?
Homework
Assignments,
Kotz & Treichel,
Chapter 8
Sections 8.1-8.5
Slide 8
Key, Group Work 9.1
For Bromine, Br, Z=35:
Do the complete (“long”) form of the electronic
configuration, order of filling:
1s2 2s22p6 3s23p6 4s23d104p5
• Do the short form, starting with [Ar18],order of filling
[Ar18] 4s23d104p5
• Do the short form, starting with [Ar18]
[Ar18]3d10 4s24p5
Valence e’s
Key, Group Work 9.2:
Ag, Z= 47
Short, Order of Filling: [Kr36] 5s24d9
5s14d10
Short, Order of Shells: [Kr36] 4d9 5s2
4d10 5s1
Valence e’s
Te, Z= 52
Short: Order of Filling [Kr36] 5s2 4d10 5p4
Short: Order of Shells [Kr36] 4d10 5s2 5p4
Valence e’s
Key, Group Work 9.3
Do Short form order of filling, short form order
of shells, circle valence e’s for Rf, Rutherfordium,
Z=104
[Rn86] 7s2 5f14 6d2(order of filling, PT)
[Rn86] 5f14 6d2 7s2 (order shells...)
Valence e’s
Key, Group Work 9.4:
Ag, Z=47:
[Kr36]
5s1
4d10
[Kr36] 4d10 5s1
Ag1+ : [Kr36] 4d10
I, Z=53: [Kr36] 5s24d105p5
[Kr36] 4d105s25p5
Zn, Z=30: [Ar18] 4s23d10
[Ar18] 3d104s2
Zn 2+: [Ar18] 3d10
Plus 1e-
I 1-: [Kr36] 4d105s25p6
Se, Z= 34: [Ar18] 4s23d104p4
[Ar18] 3d104s24p4
Se2- : [Ar18] 3d104s24p6
Plus 2e-
Key:Group Work 9.5
Cs, Ca, Cu
Cs, Z=55: [Xe54] 6s1
paramagnetic
6s1
Ca, Z=20: [Ar18]3s2
diamagnetic
3s2
Cu, Z=29: [Ar18] 3d10 4s1
paramagnetic
4s1
Key, Group Work 9.5, Continued:
C, Kr, Co
C, Z=6: [He2] 2s22p2
paramagnetic
2p2
Kr, Z=36: [Kr36]
All e’s paired
diamagnetic
Co, Z=27: [Ar18]3d74s2
paramagnetic
Chapter 8: Atomic Electronic Configurations
Sections 8.1-8.5
Assignments
• Read carefully Chapter 8, Sections 8.1-8.5, p. 332-353
• Review chapter highlights, p. 365-366, #1,4,5,6
Written Assignments, Chapter 8 (Sec 8.1-5)
In Chapter Exercises: 8.1, 8.3, 8.4
Chapter 8“study questions” p. 366-370:
all even, #2-34; 58, 68, 74, 82, 86