Rutherford

Rutherford thought an atom consisted of a tiny nucleus surrounded by mostly empty space with electrons moving in that space. Rutherford saw that some of the particles of a positively charged beam were strongly deflected, indicating the atoms make up gold foil are mostly empty space with tiny positively charged nuclei. Later Rutherford discovered the nuclei of atoms contain protons and that hydrogen atoms contain one proton.

More Info: Rutherford's Experiment

Video Explanation http://socratic.org/chemistry/a-closer-look-at-the-atom/rutherfords-gold-foil-experiment

Empty Space https://www.universal-sci.com/headlines/2017/2/16/if-atoms-are-mostly-empty-space-why-do-objects-look-and-feel-solid

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