In an alkane, each carbon atom is sp3-hybridized with 4 sigma bonds (either C–C or C–H), and each hydrogen atom is joined to one of the carbon atoms (in a C–H bond).
ɪn ɐn ˈælkeɪn, ˈiːtʃ kˈɑːɹbən ˈæɾəm ɪz ˌɛspˈiː θɹˈiːhˈaɪbɹɪdˌaɪzd wɪð fˈoːɹ sˈɪɡmə bˈɑːndz ˈiːðɚ sˈiː sˈiː ɔːɹ sˈiː ˈeɪtʃ, ænd ˈiːtʃ hˈaɪdɹədʒən ˈæɾəm ɪz dʒˈɔɪnd tə wˈʌn ʌvðə kˈɑːɹbən ˈæɾəmz ɪn ɐ sˈiː ˈeɪtʃ bˈɑːnd.