Chemistry - Electron Configuration

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 maximum number of electrons that can occupy the first energy level?

Back

The first energy level can hold a maximum of 2 electrons.

Front

What is the Aufbau Principle?

Back

The Aufbau Principle states that electrons occupy orbitals of lowest energy first before filling higher energy orbitals.

Front

What is Hund's Rule?

Back

Hund's Rule states that electrons will fill degenerate orbitals singly before pairing up in the same orbital.

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 the electron configuration for Chlorine (Cl)?

Back

The electron configuration for Chlorine is 1s² 2s² 2p⁶ 3s² 3p⁵.

Front

Which sublevels are present in the second energy level?

Back

The second energy level contains the 2s and 2p sublevels.

Front

What is the electron configuration for Zinc (Zn)?

Back

The electron configuration for Zinc is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰.

Front

What is the significance of the 'n' in electron configurations?

Back

The 'n' represents the principal quantum number, indicating the energy level of the electron.

Front

How many orbitals are in the p sublevel?

Back

The p sublevel contains 3 orbitals.