Ch 4: Quantum Review

Front

What is the Aufbau principle?

Back

The Aufbau principle states that electrons fill lower energy orbitals before filling higher energy orbitals.

Front

What element is represented by the orbital notation 1s² 2s² 2p⁶ 3s¹?

Back

Sodium (Na)

Front

What does Hund's rule state?

Back

Hund's rule states that all orbitals of equal energy are occupied by one electron before any single orbital is occupied by a second electron.

Front

What element has the orbital notation 1s² 2s² 2p⁶ 3s² 3p¹?

Back

Aluminum (Al)

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 significance of orbital notation?

Back

Orbital notation provides a visual representation of the arrangement of electrons in an atom's orbitals.

Front

What is the maximum number of electrons that can occupy a single orbital?

Back

Two electrons, with opposite spins.

Front

What is the difference between the Aufbau principle and Hund's rule?

Back

The Aufbau principle focuses on filling lower energy orbitals first, while Hund's rule emphasizes that electrons will occupy degenerate orbitals singly before pairing up.

Front

What is the electron configuration for Beryllium?

Back

1s² 2s²

Front

What is the electron configuration for Carbon?

Back

1s² 2s² 2p²