Atoms and Molecules
Atoms and molecules, two of the basic units of matter, are examined in this program through animated graphics, charts, and experiments. Models of three simple elements - hydrogen, helium, and lithium - help to explore the structure of atoms. A study of subatomic particles describes the functions of protons, electrons, and neutrons, their electrical charges, and their distribution within an atom. A special segment examines the properties of atoms, explaining how atomic mass and atomic numbers are calculated.
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