Electron Configuration Practice

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 Chlorine (Cl)?

Back

1s² 2s² 2p⁶ 3s² 3p⁵

Front

Which element has the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁵?

Back

Bromine (Br)

Front

What is the electron configuration for Oxygen (O)?

Back

1s² 2s² 2p⁴

Front

What is the electron configuration for Zinc (Zn)?

Back

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰

Front

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

Back

18 electrons (2 in 3s, 6 in 3p, and 10 in 3d).

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 Aufbau Principle?

Back

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

Front

What is the electron configuration for Magnesium (Mg)?

Back

1s² 2s² 2p⁶ 3s²