101025 L1 Chemistry 221 Video Lecture
Update: 2025-10-10
Description
Chemistry 221 L1 Video Lecture from October 10, 2025.
This video covers material from Chapter 3 including electron configurations for neutral atoms and ions (cations and anions), periodic trends (for size, ionization energy and electron affinity), and more.
CH 221 website: http://mhchem.org/221
Let me know if you have any questions! Peace!
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