Electron Configuration Rules

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 does the Pauli Exclusion Principle state?

Back

The Pauli Exclusion Principle states that an orbital can only hold a maximum of 2 electrons, each with opposite spins.

Front

What is Hund's Rule?

Back

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

Front

What is the electron configuration for Aluminum (Al)?

Back

1s² 2s² 2p⁶ 3s² 3p¹

Front

What is an orbital diagram?

Back

An orbital diagram is a visual representation of the arrangement of electrons in an atom's orbitals.

Front

How many electrons can the 1s orbital hold?

Back

The 1s orbital can hold a maximum of 2 electrons.

Front

What is the maximum number of electrons that can occupy the p orbitals?

Back

The p orbitals can hold a maximum of 6 electrons (2 in each of the 3 p orbitals).

Front

What is the significance of the quantum numbers?

Back

Quantum numbers describe the properties of atomic orbitals and the electrons in those orbitals.

Front

What is the shape of s orbitals?

Back

s orbitals are spherical in shape.

Front

What is the shape of p orbitals?

Back

p orbitals have a dumbbell shape.