常见化合价+1H,Li,Na,K,Rb,Cs,Cu,Ag,Au,Hg,In,Tl,N+2Be,Mg,Ca,Sr,Ba,Ra,Zn,Cd,Hg,Cr,Mn,Fe,Co,Ni,Cu,C,Sn,Pb,N,S+3B,Al,Ga,In,Tl ,Sc,Y,La-Lu,N,P,As,Sb,Bi,Cr,Fe,Co,Ni,Au；Ce+4C,Si,Ge,Sn,Pb,Ti,Zr,Hf,Ce,Th,Mn,Tb...对的 是初二。