Electron configurations

Front

What is electron configuration?

Back

The distribution of electrons in an atom's orbitals, indicating the energy levels and sublevels occupied by electrons.

Front

What is the Aufbau principle?

Back

A rule stating that electrons occupy the lowest energy orbitals first before filling higher energy levels.

Front

What is the Pauli Exclusion Principle?

Back

A principle stating that no two electrons in an atom can have the same set of four quantum numbers.

Front

What is Hund's Rule?

Back

A rule stating that electrons will fill degenerate orbitals singly before pairing up.

Front

What is the electronic configuration of hydrogen?

Back

1s².

Front

What is the electronic configuration of helium?

Back

1s².

Front

What is the electronic configuration of lithium?

Back

1s² 2s¹.

Front

What is the electronic configuration of carbon?

Back

1s² 2s² 2p².

Front

What is the noble gas shorthand for chlorine?

Back

[Ne] 3s² 3p⁵.

Front

What is the electronic configuration of an atom with 12 electrons?

Back

1s² 2s² 2p⁶ 3s² 3p².