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5.2 Electrons
Electron Arrangement in atoms
Term | Definition |
---|---|
Electron configuration | The ways in which electrons are arranged around the nuclei of atoms |
aufbau Principle | Describes the sequence in which orbitals are filled |
Consistent energy | The various orbitals within a sublevel of a principle energy level are always of consistent energy. |
pauli exclusion principle | States that a maximum of two electrons can occupy each orbital |
Hund's rule states that electrons pair up only after each orbital in a sublevel is occupied by | an electron |
When using the shorthand method for showing the electron configuration atom blank are used to indicate the number electrons occupying each sublevel. | superscript |
Correct electron configuratons can be obtained by using the Aufbau diagram for the elements y |