Electron Configurations

Front

What is an electron configuration?

Back

An electron configuration is the distribution of electrons in an atom's orbitals, indicating how many electrons are in each energy level and sublevel.

Front

What does the notation 1s² represent?

Back

The notation 1s² indicates that there are 2 electrons in the 1s orbital, which is the closest orbital to the nucleus.

Front

How many total electrons can fit in the first energy level?

Back

The first energy level can hold a maximum of 2 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.

Front

What is the electron configuration for a Neon atom?

Back

The electron configuration for Neon is 1s²2s²2p⁶.

Front

How many electrons does an oxygen atom have?

Back

An oxygen atom has 8 electrons.

Front

What is the highest occupied energy level in an atom?

Back

The highest occupied energy level is the energy level that contains the highest energy electrons.

Front

What is the electron configuration for Zinc?

Back

The electron configuration for Zinc is 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰.

Front

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