Oksüdatsiooni tase
+2
Hg2 mercury (I), mercurous Rb+1 rubidium
Cs+1 cesium
+2
all the alkaline earth metals show the +2 oxidation state only
Cu+2 copper (II), cupric Be+2 beryllium
+2
Fe iron (II), ferrous Ca+2 calcium
+2
Pb lead (II), plumbous Mg+2 magnesium
+2
Sn tin (II), stannous Sr+2 strontium
Cr+2 chromium (II) Ba+2 barium
+2
Ni nickel (II) Ra+2 radium
+2
Zn zinc Cd+2 cadmium
+2
annaabi.ee 
