In addition, among their respective groups, only lithium and magnesium form organometallic compounds with significant covalent character (e.g. LiMe and MgMe2).
ɪn ɐdˈɪʃən, ɐmˌʌŋ ðɛɹ ɹᵻspˈɛktɪv ɡɹˈuːps, ˈoʊnli lˈɪθiəm ænd mæɡnˈiːziəm fˈɔːɹm ɔːɹɡˌænoʊmətˈælɪk kˈɑːmpaʊndz wɪð sɪɡnˈɪfɪkənt kˈoʊvələnt kˈæɹɪktɚ ˈiː.dʒˈiː. lˈaɪ mˌiː ænd ˌɛmdʒˈiː mˌiː tˈuː.