Electron Configuration

Electron Configuration Patterns

WE CANNOT KNOW THE EXACT LOCATIONS OF ELECTRONS WITHIN ENERGY LEVELS, BUT WE CAN DESCRIBE PROBABLE REGIONS OF ELECTRON LOCATION.

Our understanding of electron distribution is based on mathematical probabilities that result from knowledge about the behavior of charged particles in an atom:
|a) | |
|b) | |
|c) | |

Consequently, there are three “rules” for predicting the most probable locations of electrons: 1) Electrons always enter the region of lowest energy available.
|This concept is called the |
|Why does it make sense? |

2) Orbitals never hold more than 2 electrons at a time.
|This concept is called the |
|Why does it make sense? |

3) Electrons enter separate orbitals in the same sublevel one-at-a time before pairing up.
| This concept is called the |
|Why does it make sense? |

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