H+3 waxaa markii ugu horeysay laga helay J. J. Thomson sanadkii 1911. intii uu baranayay noocyada ka soo baxa kuleylka plasma, wuxuu ogaaday wax aad u la yaab leh. Isticmaalka qaab hore ee spectrometry mass, wuxuu ogaaday tiro badan oo molecule ion ah oo leh saamiga mass-to-charge ee 3. Wuxuu sheegay in labada kaliya ee suurtagal ay ahaayeen C4 + ama H+3. Maadaama C4 + ay aad u yar tahay oo calaamadu ay sii xoogaysatay gaaska hydrogen saafiga ah, wuxuu si sax ah u siiyay noocyada sida H+3. Su'aal: Yaa helay molecule ion oo loo yaqaan H+3 sanadkii 1911?
J. J. Thomson