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Classification and structure of matter (K-A)

S#	Lecture	Course	Institute	Instructor	Discipline
1	Atomic number, mass number, and isotopes (K-A)	Classification and structure of matter (K-A)	Khan Academy		Basic and Health Sciences
2	Elements, atoms and subatomic particles (K-A)	Classification and structure of matter (K-A)	Khan Academy		Basic and Health Sciences

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