- 87 Views
- Uploaded on

Download Presentation
## PowerPoint Slideshow about ' Electron Configuration' - garret

**An Image/Link below is provided (as is) to download presentation**

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript

Quantum States and Orbitals

- Quantum state = a specific combination of values of variables such as energy and position that is allowed by quantum theory.
- We group electrons into different quantum states to describe their electron arrangement.

Quantum States and Orbitals

- There are 4 shapes associated with quantum states: s, p, d, and f.

Orbitals

- Orbitals hold electrons, and show the area in which the electrons can be found.
- S orbitals can hold 2 electrons
- P orbitals can hold 6 electrons
- D orbitals can hold 10 electrons

Electron Configurations

- Electron configuration = a description of which orbitals contain electrons for a particular atom.

Finding Electron Configuration

- The complete list of orbitals and the order in which they fill for all of the currently discovered elements is:
1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p

- The order tells a chemist exactly how the electrons are structured in an atom.

Book Work

- Read pages 148-159.
- Answer questions 43, 49, 52-54, 56, 58, 62.
- Find the electron configurations for Calcium, Bromine, and Tungsten.

Arrow Notation

- We have learned the long method of writing out electron configuration.
- We can also write electron config. using the box and arrow method.

Hund's rule of maximum multiplicity

- When more than one orbital of equal energies are available then the electrons will first occupy these orbitals separately with parallel spins.
- The pairing of electrons will start only after all the orbitals of a given sub level are singly occupied.

For example, the three electrons that are filled into the three 'p' orbitals can be represented in two different ways:

Nobel Gas Notation three 'p' orbitals can be represented in two different ways: (Short-Hand Method)

Download Presentation

Connecting to Server..