MoVI + e- MoV+0.43 (4.6 mol dm-3 H2SO4)

MoIII + 3e- Mo(s)- 0.2

H2MoO4(aq) + 2H+ + e- MoO2+ + 2H2O+0.4

HMoO4- + 3H+ + 2e- MoO2 + 2H2O+0.429

MoO42- + 4H+ + 2e- MoO2 + 2H2O+0.606

HMoO4- + 7H+ + 3e- Mo3+ + 4H2O+0.390

MoO42- + 8H+ + 3e- Mo3+ + 4H2O+0.508

MoO42- + 8H+ + 6e- Mo(s) + 4H2O+0.154

MoO42- + 4H2O + 6e- Mo(s) + 8OH-- 1.05

41 Niobio <= 42 Molibdeno => 43 Tecnecio