Khan Academy on a Stick
Introduction to the atom
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Elements and atoms
How elements relate to atoms. The basics of how protons, electrons and neutrons make up an atom.
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Introduction to the atom
The atom, proton, neutron and electron
Elements and atoms
How elements relate to atoms. The basics of how protons, electrons and neutrons make up an atom.
Introduction to the atom
The atom, proton, neutron and electron