The coinage metals were traditionally regarded as a subdivision of the alkali metal group, due to them sharing the characteristic s1 electron configuration of the alkali metals (group 1: p6s1; group 11: d10s1).
ðə kˈɔɪnɪdʒ mˈɛɾəlz wɜː tɹɐdˈɪʃənəli ɹᵻɡˈɑːɹdᵻd æz ɐ sˌʌbdᵻvˈɪʒən ʌvðɪ ˈælkəlˌaɪ mˈɛɾəl ɡɹˈuːp, dˈuː tə ðˌɛm ʃˈɛɹɪŋ ðə kˌæɹɪktɚɹˈɪstɪk ˈɛs wˈʌn ᵻlˈɛktɹɑːn kənfˌɪɡjɚɹˈeɪʃən ʌvðɪ ˈælkəlˌaɪ mˈɛɾəlz ɡɹˈuːp wˈʌn: pˈiː sˈɪks ᵻz wˈʌn; ɡɹˈuːp ɪlˈɛvən: dˈiː tˈɛn z wˈʌn.