有过渡元素的化合价非常多比如：Sc+3Ti-1,0,+2,+3,+4V-1,0,1,2,3,4,5Cr-2,-1,0,1,2,3,4,5,6Mn-3,-2,-1,0,1,2,3,4,5,6,7Fe-2,0,1,2,3,4,6Co-1,0,1,2,3,4,5Ni-1,0,1,2,3,4Y3Zr0,1,2,3,4Nb-1,1,2,3,4,5Mo-2,0,1,2,3,4,5...