Atoms are composed of a central nucleus, containing positively-charged protons and neutrally-charged neutrons. Smaller, negatively-charged electrons travel around the nucleus in layered orbits called shells.
A license for five years on a non-exclusive, worldwide-basis for digital educational use only in a single product or service. Does not include promotional or broadcast / VOD usage. Contact us for custom licensing options. licensing@makematic.com
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An extended license for ten years on a non-exclusive, worldwide-basis for digital educational use only in a single product or service. Does not include promotional or broadcast / VOD usage. Contact us for custom licensing options. licensing@makematic.com