Electron Configuration

Front

What is electron configuration?

Back

Electron configuration is the distribution of electrons in an atom's orbitals, indicating how many electrons occupy each energy level and sublevel.

Front

What is the Aufbau principle?

Back

The Aufbau principle states that electrons occupy the lowest energy orbitals first before filling higher energy orbitals.

Front

What is the Pauli Exclusion Principle?

Back

The Pauli Exclusion Principle states that no two electrons in an atom can have the same set of four quantum numbers, meaning an orbital can hold a maximum of two electrons with opposite spins.

Front

What is Hund's Rule?

Back

Hund's Rule states that electrons will fill degenerate orbitals (orbitals of the same energy) singly before pairing up, to minimize electron-electron repulsion.

Front

What is the noble gas configuration for an element?

Back

The noble gas configuration is a shorthand notation for electron configuration that uses the electron configuration of the nearest noble gas to simplify the representation.

Front

What is the electron configuration for Zinc (Zn)?

Back

The electron configuration for Zinc is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰.

Front

What is the electron configuration for Phosphorus (P)?

Back

The electron configuration for Phosphorus is 1s² 2s² 2p⁶ 3s² 3p³.

Front

What is the electron configuration for Oxygen (O)?

Back

The electron configuration for Oxygen is 1s² 2s² 2p⁴.

Front

What is the electron configuration for Chlorine (Cl)?

Back

The electron configuration for Chlorine is 1s² 2s² 2p⁶ 3s² 3p⁵.

Front

What is the electron configuration for Aluminum (Al)?

Back

The electron configuration for Aluminum is 1s² 2s² 2p⁶ 3s² 3p¹.