In addition, the relativistic and shell-structure effects (which stabilise the s-orbitals and destabilise and expand the d-, f-, and g-orbitals of higher shells) have opposite effects, causing even larger difference between relativistic and non-relativistic calculations of the properties of elements with such high atomic numbers.
ɪn ɐdˈɪʃən, ðə ɹˌɛləɾɪvˈɪstɪk ænd ʃˈɛlstɹˈʌktʃɚɹ ɪfˈɛkts wˌɪtʃ stˈeɪbəlˌaɪz ðɪ ˈɛsˈɔːɹbɪɾəlz ænd diːstˈeɪbəlˌaɪz ænd ɛkspˈænd ðə dˈiː, ˈɛf, ænd dʒˈiːˈɔːɹbɪɾəlz ʌv hˈaɪɚ ʃˈɛlz hæv ˈɑːpəzˌɪt ɪfˈɛkts, kˈɔːzɪŋ ˈiːvən lˈɑːɹdʒɚ dˈɪfɹəns bᵻtwˌiːn ɹˌɛləɾɪvˈɪstɪk ænd nˈɑːnɹˌɛləɾɪvˈɪstɪk kˌælkjʊlˈeɪʃənz ʌvðə pɹˈɑːpɚɾiz ʌv ˈɛlɪmənts wɪð sˈʌtʃ hˈaɪ ɐtˈɑːmɪk nˈʌmbɚz.