HOMEWORK Complete lab handout Read 11.7 - 11.9 Remember to try self checks! #'s 30,32-36 Review this powerpoint
Today's Lesson....Electron Hotels!
Do Now:How many electrons are in the following atoms?
1) H2) Be3) N4) Ar5) V
1 e-
4 e-
7 e-
18 e-
23 e-
So what does an electron hotel look like?
There are four types of suites:
Simple (s) Posh (p) Deluxe (d) FANTABULOUS (f)
--- 1 room--- 3 rooms--- 5 rooms
--- 7 rooms
Obviously, e- don’t really stay in hotel rooms…
CORRECT VOCABULARY
Floor = Principal Energy Level
Suite = Sublevel
Room = Orbital
3s
2p
2s
1s1s22s1Li
HotelLayout... 3d
4s
3p
3s
2p
2s
1s
NOTICE!
The electrons' habits.... e- are always moving so they stay in hotels.
When e- enter the hotel they're lazy!(they avoid climbing the stairs at all costs)
e- like privacy and prefer to stay in a room all alone, but...
if they have no choice, an e- will share a room with 1 other e- - maximum!
When sharing a room, an e- will always ignore the other e-.
Example #1 ...Hydrogen 3d
4s
3p
3s
2p
2s
1s
• H has 1 e-
That electron is lazy and stays in the first open room it finds!
1s1
Example #2 ...Beryllium 3d
4s
3p
3s
2p
2s
1s
• Be has 4 e-
Those e- are also lazy and stay in the first open rooms they find too!
1s22s2
Example #3 ...Nitrogen 3d
4s
3p
3s
2p
2s
1s
• N has 7 e-
Those e- are also lazy and stay in the first open rooms they find too!
1s22s22p3
Maximum Number of Electrons In Each SublevelMaximum Number of Electrons In Each Suite Type
Suite # of Maximum # Type rooms of electrons
s 1 2
p 3 6
d 5 10
f 7 14
So how am I supposed to remember
the order of the rooms?
Ex: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d9
What element would this be? 47 total e-
MUST BE
Ag!
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