The element hydrogen, with one electron per neutral atom, is usually placed at the top of Group 1 of the periodic table because of its electron configuration.
ðɪ ˈɛlɪmənt hˈaɪdɹədʒən, wɪð wˈʌn ᵻlˈɛktɹɑːn pɜː nˈuːtɹəl ˈæɾəm, ɪz jˈuːʒuːəli plˈeɪst æt ðə tˈɑːp ʌv ɡɹˈuːp wˈʌn ʌvðə pˌiəɹɪˈɑːdɪk tˈeɪbəl bɪkˈʌz ʌv ɪts ᵻlˈɛktɹɑːn kənfˌɪɡjɚɹˈeɪʃən.