;Fe;Pt;Ti;Mt;Ta I;"3d 2p 2r";–;3-3v;"3-3v 1vm";– II;"3d 3p 2r";–;"2p 3-3v";"1p 3-3v";– III;"3d 3p 2r";"1p 1(0)r";"2p 2r 3-3v";"5p 4r 3-3v";"2p 1-1v" IV;"3d 2p 1r";"1p 1r";"2p 2r 3-3v";"5p 4r 3-3v";"2p 3r"