The alkali metals are more similar to each other than the elements in any other group are to each other.
ðɪ ˈælkəlˌaɪ mˈɛɾəlz ɑːɹ mˈoːɹ sˈɪmɪlɚ tʊ ˈiːtʃ ˈʌðɚ ðɐn ðɪ ˈɛlɪmənts ɪn ˌɛni ˈʌðɚ ɡɹˈuːp ɑːɹ tʊ ˈiːtʃ ˈʌðɚ.