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Detection of Hydrogen Hydrogen is prevalent in the universe. Life in the universe is ultimately based on hydrogen. Wien generated hydrogen ions by discharge of hydrogen gas at a very low pressure and determine the e/m ("charge"//"mass") value, which turned out to be the highest among different gases tested. In 1919, Rutherford bombarded notrogen with alpha-particles and observed emission of a positively charged particle which turned out to be the hydrogen ion observed by Wien. Rutherford named this particle the ''proton''. Fill in the blank. ^(14)N+ ^(4)He rarr ............ + ^(1)H |
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