Chem: Test 4- Electron Config & Orbital Diagrams

Electrons occupy orbitals of the lowest energy first (1s²2s²...)

• Hund's Rule

• Aufbau Principle

• Pauli Exclusion Principle

Electrons occupy orbitals of the lowest energy first (1s²2s²...)

• Hund's Rule

• Aufbau Principle

• Pauli Exclusion Principle

an orbital has a maximum of 2 electrons, with opposite spins

• Hund's Rule

• Aufbau Principle

• Pauli Exclusion Principle

every orbital in a sublevel is singly occupied (with the same spin) before any orbital is double occupied.

• Hund's Rule

• Aufbau Principle

• Pauli Exclusion Principle

shorthand notation of the arrangement of electrons in an atom according to increasing energy

• Orbital Diagram

• Electron Configuration

Practice with P Table: Ne electron config.

Practice with P Table: B electron config.

True or False: d-block starts with 3d

• True

• False

True or False: f-block starts with 5f

• True

• False

True or False: 5d comes before 4f

• True

• False