Electron Configuration

Front

What is electron configuration?

Back

Electron configuration is the distribution of electrons in an atom's orbitals, indicating how many electrons occupy each energy level and subshell.

Front

What does the notation 1s² represent?

Back

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

Front

How many electrons can fit in the s subshell?

Back

The s subshell can hold a maximum of 2 electrons.

Front

How many electrons can fit in the p subshell?

Back

The p subshell can hold a maximum of 6 electrons.

Front

How many electrons can fit in the d subshell?

Back

The d subshell can hold a maximum of 10 electrons.

Front

How many electrons can fit in the f subshell?

Back

The f subshell can hold a maximum of 14 electrons.

Front

What is the maximum number of electrons in the second energy level?

Back

The second energy level can hold a maximum of 8 electrons (2 in the s subshell and 6 in the p subshell).

Front

What is the electron configuration for a neutral oxygen atom?

Back

The electron configuration for a neutral oxygen atom is 1s² 2s² 2p⁴.

Front

What is the significance of the Aufbau principle in electron configuration?

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.