Group 14 - Carbon Group en:Carbon group tetravalent ( number of valence electrons=4) English Wikipedia tetravalent ( number of valence electrons=4) carbon group Carbon group main group IV English tai pačiai grupei en.wikipedia.org English en:Carbon group group 14 en:Carbon group English tetravalent ( number of valence electrons=4) Wikipedia English group 14 carbon group Wikipedia group 14 group 14 main group IV group 14 carbon group tetravalent ( number of valence electrons=4) main group IV English Carbon_group English English English tetravalent ( number of valence electrons=4) carbon group English English tetravalent ( number of valence electrons=4) tetravalent ( number of valence electrons=4) Carbon group carbon group tetravalent ( number of valence electrons=4) Carbon_group tetravalent ( number of valence electrons=4) tetravalent ( number of valence electrons=4) tetravalent ( number of valence electrons=4) English English English group 14 English tetravalent ( number of valence electrons=4) main group IV group 14 English tetravalent ( number of valence electrons=4) English en:Carbon group tetravalent ( number of valence electrons=4)