atomic structure · •electron configuration wkst . atomic structure orbital diagrams and electron...
TRANSCRIPT
![Page 1: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/1.jpg)
ATOMIC STRUCTURE
Electron Configuration
Building the Atom
![Page 2: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/2.jpg)
ATOMIC STRUCTURE Remember… Atomic Number (Z) : the number of protons in the nucleus of the atom. Mass Number (A) : the number of protons and neutrons in the nucleus of the atom. Neutron Number (N) : A - Z = N
![Page 3: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/3.jpg)
ATOMIC STRUCTURE LOCATION OF ELECTRONS IN THE ATOM: • Electron Cloud
• Energy Levels
• Sublevels
• Orbitals
![Page 4: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/4.jpg)
ATOMIC STRUCTURE LOCATION OF ELECTRONS IN THE ATOM: • Sublevels have (degenerate states) that we call orbitals. These sublevels are named s, p, d, f, g, etc. The energy level determines the number of sublevels...
![Page 5: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/5.jpg)
ATOMIC STRUCTURE LOCATION OF ELECTRONS IN THE ATOM:
Sublevels: s- one orbital p- three orbitals d- five orbitals f- seven orbitals Etc...
![Page 6: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/6.jpg)
ATOMIC STRUCTURE LOCATION OF ELECTRONS IN THE ATOM:
It turns out, in each orbital, there can be a maximum of two electrons. So... s- 2 electrons total p- 6 electrons total d- 10 electrons total f- 14 electrons total
![Page 7: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/7.jpg)
ATOMIC STRUCTURE Orbital diagrams and electron configurations
Orbital diagrams help show how the electrons are distributed within the sublevels.
1s NOTICE THAT WHEN ELECTRONS PAIR THEY HAVE OPPOSITE SPINS.
![Page 8: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/8.jpg)
ATOMIC STRUCTURE
PAULI EXCLUSION PRINCIPLE...
No two electrons can have the same quantum numbers or no more than two electrons can be found in any given orbital.
![Page 9: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/9.jpg)
ATOMIC STRUCTURE
HUND’S RULE: the most stable arrangement of electrons
is that with the maximum number of unpaired electrons, all with the same spin direction.
In other words…electrons don’t pair until they have too!
![Page 10: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/10.jpg)
ATOMIC STRUCTURE
Orbital Diagrams
1s 2s 2px 2py 2pz
3s
etc...
What element is this????
![Page 11: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/11.jpg)
ATOMIC STRUCTURE Another way to write this is by using
electron configuration notation
1s22s22p63s2
![Page 12: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/12.jpg)
ATOMIC STRUCTURE
ORDER OF CHOICE:
1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p...
Why? Energy of some orbitals overlap higher orbitals.
Page 97
![Page 13: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/13.jpg)
ATOMIC STRUCTURE
Let’s practice… Assignment: Electron Configuration Level One and Two • Electron Configuration Wkst
![Page 14: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/14.jpg)
ATOMIC STRUCTURE Orbital diagrams and electron configurations
Orbital diagrams help show how the electrons are distributed within the sublevels.
1s NOTICE THAT WHEN ELECTRONS PAIR THEY HAVE OPPOSITE SPINS.
![Page 15: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/15.jpg)
ATOMIC STRUCTURE
Orbital Diagrams
1s 2s 2px 2py 2pz
3s
etc...
What element is this????
![Page 16: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/16.jpg)
ATOMIC STRUCTURE Another way to write this is by using
electron configuration notation
1s22s22p63s2
![Page 17: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/17.jpg)
ATOMIC STRUCTURE Another way to write this is by using
noble gas notation
[Ne]3s2
Since Ne has a configuration of 1s22s22p6
![Page 18: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/18.jpg)
ATOMIC STRUCTURE
Let’s practice… Valence Electron Configuration
![Page 19: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/19.jpg)
ATOMIC STRUCTURE
Connections: Do you see any relationship between the electron configuration and where the element is located on the Periodic Table?
![Page 20: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/20.jpg)
ATOMIC STRUCTURE
You should be able to… • Write the electron configuration • Draw the orbital diagram • Write the noble gas notation • And predict the element
![Page 21: ATOMIC STRUCTURE · •Electron Configuration Wkst . ATOMIC STRUCTURE Orbital diagrams and electron configurations Orbital diagrams help show how the electrons are distributed within](https://reader034.vdocuments.net/reader034/viewer/2022042708/5f3d25f907815d65393cce80/html5/thumbnails/21.jpg)
ATOMIC STRUCTURE
Assignment: • Electron Configuration Wkst 2