Each carbon atom in the hexagonal cycle has four electrons to share. One goes to the hydrogen atom, and one each to the two neighboring carbons. This leaves one to share with one of its two neighboring carbon atoms, which is why the benzene molecule is drawn with alternating single and double bonds around the hexagon.
iː t̠ʃ WORD_BOUNDARY k ɑ ɹ b ə n WORD_BOUNDARY æ t ə m WORD_BOUNDARY ɪ n ð ə WORD_BOUNDARY h ɛ k s ʌ ɡ ə n ə l WORD_BOUNDARY s aɪ k ə l WORD_BOUNDARY h ʌ z WORD_BOUNDARY f ɔ ɹ WORD_BOUNDARY ɪ l ɛ k t ɹ ɑ n z WORD_BOUNDARY t ə WORD_BOUNDARY ʃ ɛ ɹ WORD_BOUNDARY w ʌ n WORD_BOUNDARY ɡ oʊ z WORD_BOUNDARY t ə WORD_BOUNDARY ð ə WORD_BOUNDARY h aɪ d ɹ ə d̠ʒ ə n WORD_BOUNDARY æ t ə m WORD_BOUNDARY æ n d WORD_BOUNDARY w ʌ n WORD_BOUNDARY iː t̠ʃ WORD_BOUNDARY t ə WORD_BOUNDARY ð ə WORD_BOUNDARY t uː WORD_BOUNDARY n eɪ b ə ɹ ɹ ɪ ŋ WORD_BOUNDARY k ɑ ɹ b ə n z WORD_BOUNDARY ð ɪ s WORD_BOUNDARY l iː v z WORD_BOUNDARY w ʌ n WORD_BOUNDARY t ə WORD_BOUNDARY ʃ ɛ ɹ WORD_BOUNDARY w ɪ ð WORD_BOUNDARY w ʌ n WORD_BOUNDARY ʌ v WORD_BOUNDARY ɪ t s WORD_BOUNDARY t uː WORD_BOUNDARY n eɪ b ə ɹ ɹ ɪ ŋ WORD_BOUNDARY k ɑ ɹ b ə n WORD_BOUNDARY æ t ə m z WORD_BOUNDARY w ɪ t̠ʃ WORD_BOUNDARY ɪ z WORD_BOUNDARY w aɪ WORD_BOUNDARY ð ə WORD_BOUNDARY b ɛ n z iː n WORD_BOUNDARY m ɑ l ɪ k j uː l WORD_BOUNDARY ɪ z WORD_BOUNDARY d ɹ ɔ n WORD_BOUNDARY w ɪ ð WORD_BOUNDARY ɔ l t ə ɹ n eɪ t ɪ ŋ WORD_BOUNDARY s ɪ ŋ ɡ ə l WORD_BOUNDARY æ n d WORD_BOUNDARY d ʌ b ə l WORD_BOUNDARY b ɑ n d z WORD_BOUNDARY ə ɹ ɹ aʊ n d WORD_BOUNDARY ð ə WORD_BOUNDARY h ɛ k s æ ɡ ə n WORD_BOUNDARY