Download presentation

Presentation is loading. Please wait.

Published byJean Ganson Modified over 2 years ago

2
Using Quantum Numbers to Describe Electrons De Broglie Schrodinger Clouds probable location for electrons λ=λ= h mυ

3
Quantum Numbers n Four numbers (variables) that describe the shape of the cloud and location of electrons. n Described using the variables: n, l, m, s.

4
“n” = the Principle Quantum Number(Energy Quantum #) n Corresponds to periodic table’s horizontal row. n = 1 n = 2 n = 3

5
“n” = the Principle Quantum Number(Energy Quantum #) n Higher number, more energy/ bigger cloud n 2n 2 is how many electrons may have that energy

6
“l” sublevel of n Shape n Found within “n” (4 sublevels/orbital types) n “s” has 1 orbital (spherical shaped). n Each orbital can have at most two electrons.

7
“l” sublevel of n Shape n “p” sublevel is barbell shaped n three orbitals: px, py, pz

8
“l” sublevel of n Shape “d” shape n 5 orbitals :z 2, xy, xz, yz, x 2 - y 2 n Each orbital can have how many electrons? n How many total electrons can the d orbitals have?

9
“l” sublevel of n Shape n “f” sublevel n seven orbitals n How many total electrons possible in “f”?

10
“m” Quantum Number n Determines the orientation in space (which orbital is being filled)

11
“s” spin Quantum Number n s = 1/2 is clockwise (up) n s = -1/2 is counter-clockwise (down)

12
Quantum Number n Keep in mind are probabilities of finding electrons in certain places doing certain things(spin). n n = what energy level (1, 2, 3, 4...) n l = what sub-level (s, p, d, or f) n m = which orbital (s=1; p=3; d=5; f=?) n s = which spin (only two possibilities up or down)

13
Pauli Exclusion Principle n No two electrons ever have the same four quantum numbers in the same atom. n Just as no two houses have the same address.

14
Quantum #’s can be viewed as Addresses n Each town has two mains streets, one running north-south and the other running east-west N S W E n They are numbered according to how far they are from the intersection of these two streets. 100, 200, 300- for first block, second block, etc.

15
Quantum #’s can be viewed as Addresses N S W E 100W 200W Main St

16
Quantum #’s can be viewed as Addresses n Even #s are on one side of the street and odd #s are on the other side. W E 1602 1508 1511 1627

17
Quantum #’s can be viewed as Addresses n So an address tells you four things n which block its on, n How far down the street it is n which side of the street it’s on n which house it is.

18
Quantum #’s can be viewed as Addresses n 833 W. Electron Ave. 700W Electron Ave 833 876

19
Quantum #s n n - tells the size and energy n l - tells the shape n m - tells how the shape fits on the x, y, z axes n s- tells about spin.

Similar presentations

Presentation is loading. Please wait....

OK

Electromagnetic Spectrum Atomic Emission Spectrum.

Electromagnetic Spectrum Atomic Emission Spectrum.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on different types of flowers Field emission display ppt online Ppt on hydroelectric dams in india Ppt on minimum oil circuit breaker Ppt on applied operations research Ppt on abstract art wallpaper Ppt on bluetooth architecture images Ppt on earth hour chicago Ppt on surface water pollution Ppt on arc flash