Six short years ago mathematical builders of the universe got along with two fundamental particles, the proton and the electron. The proton was the nucleus of the simplest atom, hydrogen. It had a charge of positive electricity and its mass was .0000000000000000000000166 gram. The electron, which in the hydrogen atom throbbed alone around the nuclear proton, had a negative charge matching the proton's positive charge and its mass was 1,847 times less than that of the other particle. The more complex atoms of other elements were constructed from various combinations of electrons and...
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