Group IV-A Elements This group of elements is placed in middle of periodic table. Group 4A (or IVA or group 14) elements of the modern periodic table includes the nonmetal carbon (C), the metalloids silicon (Si) and germanium (Ge), the metals tin (Sn) and lead (Pb), and ununquadium (Uuq).  Melting and Boiling Point of group 4 AGroup IV-A Elements Properties : Melting and Boiling Point | Metallic Character | Oxidation state | Inert pair Effect – Chemistry