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 does the notation 1s² represent?

Back

The notation 1s² indicates that there are 2 electrons in the 1s orbital.

Front

How many electrons can the s orbital hold?

Back

The s orbital can hold a maximum of 2 electrons.

Front

What is the maximum number of electrons in the p orbital?

Back

The p orbital 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 Zinc atom?

Back

The electron configuration for Zinc (atomic number 30) is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰.

Front

Which orbital has the highest energy: 2p, 2s, 3p, or 1s?

Back

The 3p orbital has the highest energy among these options.

Front

What is the electron configuration for an oxygen atom?

Back

The electron configuration for an oxygen atom (atomic number 8) is 1s² 2s² 2p⁴.