As an example of hydrogen's unorthodox properties stemming from its unusual electron configuration and small size, the hydrogen ion is very small (radius around 150 fm compared to the 50–220 pm size of most other atoms and ions) and so is nonexistent in condensed systems other than in association with other atoms or molecules.
æz ɐn ɛɡzˈæmpəl ʌv hˈaɪdɹədʒənz ʌnˈɔːɹθədˌɑːks pɹˈɑːpɚɾiz stˈɛmɪŋ fɹʌm ɪts ʌnjˈuːʒuːəl ᵻlˈɛktɹɑːn kənfˌɪɡjɚɹˈeɪʃən ænd smˈɔːl sˈaɪz, ðə hˈaɪdɹədʒən ˈaɪɑːn ɪz vˈɛɹi smˈɔːl ɹˈeɪdɪəs ɚɹˈaʊnd wˈʌnhˈʌndɹɪd fˈɪfti ˌɛfˈɛm kəmpˈɛɹd tə ðə fˈɪfti tˈuːhˈʌndɹɪd twˈɛnti pˌiːˈɛm sˈaɪz ʌv mˈoʊst ˈʌðɚɹ ˈæɾəmz ænd ˈaɪɑːnz ænd sˌoʊ ɪz nˌɑːnɛɡzˈɪstənt ɪn kəndˈɛnst sˈɪstəmz ˈʌðɚ ðɐn ɪn ɐsˌoʊsɪˈeɪʃən wɪð ˈʌðɚɹ ˈæɾəmz ɔːɹ mˈɑːlɪkjˌuːlz.