This led to the conclusion (Moseley's law) that the atomic number does closely correspond (with an offset of one unit for K-lines, in Moseley's work) to the calculated electric charge of the nucleus, i.e. the element number Z.
ðɪs lˈɛd tə ðə kəŋklˈuːʒən mˈoʊsliz lˈɔː ðætðɪ ɐtˈɑːmɪk nˈʌmbɚ dˈʌz klˈoʊsli kˌɔːɹɪspˈɑːnd wɪð ɐn ˈɔfsɛt ʌv wˈʌn jˈuːnɪt fɔːɹ kˈeɪlˈaɪnz, ɪn mˈoʊsliz wˈɜːk tə ðə kˈælkjʊlˌeɪɾᵻd ᵻlˈɛktɹɪk tʃˈɑːɹdʒ ʌvðə nˈuːklɪəs, ˈaɪ.ˈiː. ðɪ ˈɛlɪmənt nˈʌmbɚ zˈiː.