Electron Configurations & Orbital Notation

Front

What is an electron configuration?

Back

An 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 maximum number of electrons that can occupy the s sublevel?

Back

The s sublevel can hold a maximum of 2 electrons.

Front

How many orbitals are in the p sublevel?

Back

The p sublevel contains 3 orbitals.

Front

What is the maximum number of electrons that can occupy the p sublevel?

Back

The p sublevel can hold a maximum of 6 electrons.

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 (orbitals of the same energy) singly before pairing up.

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 the electron configuration for a Neon atom?

Back

The electron configuration for Neon is 1s² 2s² 2p⁶.

Front

What is the electron configuration for a Sodium atom?

Back

The electron configuration for Sodium is 1s² 2s² 2p⁶ 3s¹.

Front

How many total electrons are in an atom with the configuration 1s² 2s² 2p⁶ 3s² 3p⁶?

Back

There are 18 total electrons in this atom.