Electron Configuration Practice

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 for Chlorine (Cl)?

Back

1s² 2s² 2p⁶ 3s² 3p⁵

Front

Which element has the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁵?

Back

Bromine (Br) is the element with this electron configuration.

Front

What is the electron configuration for Zinc (Zn)?

Back

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰

Front

What is the electron configuration for Oxygen (O)?

Back

1s² 2s² 2p⁴

Front

What is the electron configuration for Rubidium (Rb)?

Back

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s¹

Front

What is the maximum number of electrons that can occupy the 3rd energy level?

Back

The maximum number of electrons in the 3rd energy level is 18.

Front

What is the Aufbau principle?

Back

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

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.