Electron Configuration

Front

What is electron configuration?

Back

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

Front

What is the electron configuration of an oxygen atom?

Back

1s² 2s² 2p⁴

Front

What is the electron configuration of Iodine?

Back

[Kr] 5s² 4d¹⁰ 5p⁵

Front

What is the electron configuration for Silicon (Si)?

Back

1s² 2s² 2p⁶ 3s² 3p²

Front

What is the electron configuration of Calcium?

Back

1s² 2s² 2p⁶ 3s² 3p⁶ 4s²

Front

What is the electron configuration for Nickel (Ni)?

Back

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁸

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 Hund's rule?

Back

Hund's rule states that electrons will fill degenerate orbitals singly before pairing up in the same orbital.

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.

Front

What is a valence electron?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.