Rules for Filling Orbital Diagrams

Front

What is the Aufbau principle?

Back

The Aufbau principle states that electrons occupy the lowest energy orbitals first before filling higher energy levels.

Front

What does Hund's rule state?

Back

Hund's rule states that electrons will fill degenerate orbitals (orbitals of the same energy) singly before pairing up.

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 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 each orbital hold?

Back

Each orbital can hold a maximum of 2 electrons.

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 maximum number of electrons in the n=2 energy level?

Back

The maximum number of electrons in the n=2 energy level is 8.

Front

What is the difference between s, p, d, and f orbitals?

Back

s orbitals are spherical, p orbitals are dumbbell-shaped, d orbitals have more complex shapes, and f orbitals are even more complex.

Front

What is the electron configuration for nitrogen?

Back

The electron configuration for nitrogen is 1s² 2s² 2p³.

Front

What is the electron configuration for oxygen?

Back

The electron configuration for oxygen is 1s² 2s² 2p⁴.