Electron Configuration (CP)

Front

What is electron configuration?

Back

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 electron configuration for Magnesium (Mg)?

Back

1s² 2s² 2p⁶ 3s²

Front

What comes after the 2p sublevel in the order of filling orbitals?

Back

3s sublevel is filled after the 2p sublevel.

Front

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

Back

10 electrons.

Front

What is the electron configuration for Oxygen (O)?

Back

1s² 2s² 2p⁴

Front

Identify the electron configuration for Aluminum (Al).

Back

1s² 2s² 2p⁶ 3s² 3p¹

Front

What is the maximum number of electrons that can occupy the 3rd energy level?

Back

18 electrons.

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 Hund's Rule?

Back

Hund's Rule states that electrons will occupy degenerate orbitals singly before pairing up.

Front

What is the significance of the Aufbau Principle?

Back

The Aufbau Principle states that electrons fill orbitals starting from the lowest energy level to the highest.