Electron Configuration

Front

What is electron configuration?

Back

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

Front

How many electrons are in the electron configuration 1s² 2s² 2p⁶?

Back

10

Front

What are valence electrons?

Back

Electrons farthest away from the nucleus that are involved in chemical bonding.

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, meaning an orbital can hold a maximum of 2 electrons.

Front

What is the maximum number of electrons that can occupy a d orbital?

Back

10

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 Hund's Rule?

Back

A principle stating that electrons will fill degenerate orbitals singly before pairing up, to minimize electron-electron repulsion.

Front

What is the electron configuration for Neon?

Back

1s² 2s² 2p⁶

Front

What is the significance of the number of valence electrons?

Back

Valence electrons determine an atom's chemical properties and its ability to bond with other atoms.

Front

What is an orbital?

Back

A region in an atom where there is a high probability of finding electrons.