He called the new heavy nuclear particles protons in 1920 (alternate names being proutons and protyles).
hiː kˈɔːld ðə nˈuː hˈɛvi nˈuːklɪɹ pˈɑːɹɾɪkəlz pɹˈoʊtɑːnz ɪn nˈaɪntiːnhˈʌndɹɪd twˈɛnti ɔːltˈɜːnət nˈeɪmz bˌiːɪŋ pɹˈaʊtənz ænd pɹˈɑːɾɪlz.