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!