Chemistry 221 L2 Video Lecture from October 9, 2025, Part 4 of 4.

This video covers material from Chapter 3 including ionic compounds with variable charge metals, covalent compounds (Greek prefixes), acids, bases hydrated compounds, and more.

CH 221 website: https://mhchem.org/221

Let me know if you have any questions! Peace!

Chemistry 221 L2 Video Lecture from October 9, 2025, Part 3 of 4.

This video covers material from Chapter 3 including periodic properties using the periodic table, ionic versus covalent bonding, fixed charges on metals and non metals, variable charge metals, creating ionic compounds (and naming them), and more.

CH 221 website: https://mhchem.org/221

Let me know if you have any questions! Peace!

Chemistry 221 L2 Video Lecture from October 9, 2025, Part 2 of 4.

This video covers material from Chapter 3 including an overview of quantum numbers, the Pauli Exclusion principle, the Aufbau diagram, the n+l rule, placing electrons in atoms, electron configurations of ions, and more.

CH 221 website: https://mhchem.org/221

Let me know if you have any questions! Peace!

Chemistry 221 L2 Video Lecture from October 9, 2025, Part 1 of 4.

This video covers material from Chapter 3 including an overview the de Broglie equation, the Heisenberg uncertainty principle, Schrödinger's equations, the four quantum numbers and more.

CH 221 website: https://mhchem.org/221

Let me know if you have any questions! Peace!

Chemistry 221 L1 Video Lecture from October 8, 2025.

This video covers material from Chapter 3 including an overview of the four quantum numbers, nl notation, the Pauli exclusion principle, Aufbau diagrams, and more.

CH 221 website: https://mhchem.org/221

Let me know if you have any questions! Peace!