What two oxidation states are more frequently observed in the first transition series than in the third?
A)+3 and +7
B)+2 and +3
C)+2 and +7
D)+5 and +6
E)+3 and +5

Question

Quizplus · Accepted Answer

The first transition series consists of elements from Scandium (Sc) to Copper (Cu), while the third transition series consists of elements from Lutetium (Lu) to Gold (Au). The first transition series shows a greater frequency of +2 and +3 oxidation states, while the third transition series tends to exhibit higher oxidation states such as +5 and +6. Therefore, choice B (+2 and +3) is the best option.

What Two Oxidation States Are More Frequently Observed in the First