alkali metal [alkali metals](soft, light, reactive metals of Group 1 of the periodic table) noun [UK: ˈælk.ə.laɪ ˈmet.l̩] [US: ˈælk.ə.ˌlaɪ ˈmet.l̩]
teralkala metalonoun
alkaline earth metal [alkaline earth metals](any element of group II of the periodic table) noun [UK: ˈælk.ə.laɪn ɜːθ ˈmet.l̩] [US: ˈælk.ə.ˌlaɪn ˈɝːθ ˈmet.l̩]