Electron configuration flashcard

Front

What is electron configuration?

Back

The distribution of electrons in an atom's orbitals, indicating how many electrons occupy each energy level and sublevel.

Front

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

Back

6 electrons.

Front

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

Back

14 electrons.

Front

What is the Aufbau principle?

Back

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

Front

What is Hund's rule?

Back

Electrons will fill degenerate orbitals (orbitals of the same energy) singly before pairing up.

Front

What is the Pauli Exclusion Principle?

Back

No two electrons in an atom can have the same set of four quantum numbers; thus, an orbital can hold a maximum of two electrons with opposite spins.

Front

What is the electron configuration of oxygen (O)?

Back

1s² 2s² 2p⁴.

Front

How many valence electrons does magnesium (Mg) have?

Back

2 valence electrons.

Front

What is the significance of the noble gas configuration?

Back

It represents a stable electron configuration, often used to simplify the electron configuration of other elements.

Front

What is the electron configuration of iron (Fe)?

Back

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁶.