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 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 lowest energy level.

Front

How many electrons can the s orbital hold?

Back

The s orbital can hold a maximum of 2 electrons.

Front

What is the maximum number of electrons in the p orbital?

Back

The p orbital can hold a maximum of 6 electrons.

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

How do you determine the number of electrons in an atom from its electron configuration?

Back

The total number of electrons is the sum of the superscripts in the electron configuration.

Front

What is the electron configuration for chlorine (Cl)?

Back

The electron configuration for chlorine (Cl) is 1s² 2s² 2p⁶ 3s² 3p⁵.

Front

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

Back

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

Front

What is Hund's rule?

Back

Hund's rule states that electrons will occupy degenerate orbitals singly before pairing up to minimize repulsion.

Front

What is the electron configuration for zinc (Zn)?

Back

The electron configuration for zinc (Zn) is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰.