Interest in the chemical properties of ununennium, unhexpentium, and unsepttrium stems from the fact that they are located close to the expected locations of islands of stability, centered at elements 122 (306Ubb) and 164 (482Uhq).
ˈɪntɹɛst ɪnðə kˈɛmɪkəl pɹˈɑːpɚɾiz ʌv ʌnˌʌnɛnˈɪəm, ʌnhɛkspˈɛntiəm, ænd ʌnsˈɛptɹiəm stˈɛmz fɹʌmðə fˈækt ðæt ðeɪ ɑːɹ loʊkˈeɪɾᵻd klˈoʊs tə ðɪ ɛkspˈɛktᵻd loʊkˈeɪʃənz ʌv ˈaɪləndz ʌv stəbˈɪlᵻɾi, sˈɛntɚd æɾ ˈɛlɪmənts wˈʌnhˈʌndɹɪd twˈɛnti tˈuː θɹˈiːhˈʌndɹɪd sˈɪks ˈʌb ænd wˈʌnhˈʌndɹɪd sˈɪksti fˈoːɹ fˈoːɹhˈʌndɹɪd ˈeɪɾi tˈuː ˈuːk.