P2 Chemistry - Electron Configuration

Front

What is an orbital diagram?

Back

An orbital diagram is a visual representation of the electron arrangement in an atom, using arrows to indicate the spin of electrons in orbitals.

Front

What is the electron configuration for an oxygen atom?

Back

1s² 2s² 2p⁴

Front

What is the electron configuration for Aluminum (Al)?

Back

1s² 2s² 2p⁶ 3s² 3p¹

Front

What is the electron configuration for Chlorine (Cl)?

Back

1s² 2s² 2p⁶ 3s² 3p⁵

Front

What does the Aufbau Principle state?

Back

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

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 fill degenerate orbitals singly before pairing up in orbitals.

Front

Define electron configuration.

Back

Electron configuration is the distribution of electrons in an atom's orbitals, described by a series of numbers and letters.

Front

What is the significance of the 1s, 2s, 2p notation in electron configuration?

Back

The notation indicates the energy level (1, 2) and type of orbital (s, p) where electrons are found.

Front

How many electrons can the s orbital hold?

Back

The s orbital can hold a maximum of 2 electrons.