The atom and the Solar System The Solar system Sun's mass is 1048 times Jupiter's mass Radius of Neptune's orbit is 6500 times radius of Sun Sun stays put and all planets orbit it Atoms are about a = 0.1 nm in radius Nucleus is about R = 10 fm in radius The hydrogen atom Nuclear mass is 1836 times electron's mass Radius of atom is about 10,000 times radius of nucleus Could the atom be like a mini-solar system
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