Hence, the larger alkali metal atoms (further down the group) will be less electronegative as the bonding pair is less strongly attracted towards them.
hˈɛns, ðə lˈɑːɹdʒɚɹ ˈælkəlˌaɪ mˈɛɾəl ˈæɾəmz fˈɜːðɚ dˌaʊn ðə ɡɹˈuːp wɪl biː lˈɛs ᵻlˈɛktɹoʊŋɡətˌɪv æz ðə bˈɑːndɪŋ pˈɛɹ ɪz lˈɛs stɹˈɔŋli ɐtɹˈæktᵻd təwˈɔːɹdz ðˌɛm.