BackChemistry Basics: Matter, Measurement, and Atomic Structure
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Classification of Matter
01:34
04:19
02:58
Periodic Table: Element Symbols
04:01
01:01
Periodic Table: Classifications
01:12
02:40
03:37
Periodic Table: Representative Elements & Transition Metals
01:23
03:30
The Atom (Simplified)
02:53
01:44
02:52
Isotopes
04:36
03:57