Various tests eliminated the possibility of the unknown element being thorium, radium, lead, bismuth, or thallium.
vˈɛɹiəs tˈɛsts ᵻlˈɪmᵻnˌeɪɾᵻd ðə pˌɑːsəbˈɪlᵻɾi ʌvðɪ ʌnnˈoʊn ˈɛlɪmənt bˌiːɪŋ θˈoːɹiəm, ɹˈeɪdiəm, lˈiːd, bˈɪsmʌθ, ɔːɹ θˈæliəm.