;Fe;Pt;Ti;Mt;Ta I;"3d 2p 1r";–;3-3v;"1p 3-3v";– II;"3d 3p 2r";–;"2p 3-3v";3-3v;– III;"3d 3p 2r";"1p 1r";"2p 2r 3-3v";"5p 4r 3-3v";"1p 1r" IV;"3d 1p 1r";"1d 1p 1r";"1d 2p 2r 3-3v";"5p 5r 3-3v";"2p 1r"