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What is the oxidation state exhibited by actinium?(a) +4(b) +1(c) +2(d) +3The question was asked by my school principal while I was bunking the class.I'm obligated to ask this question of Electronic Configurations of the D-Block Elements topic in section D and F-Block Elements of Chemistry – Class 12

Answer» CORRECT option is (d) +3

The explanation: Actinium is the first member of the actinoid series. Its atomic number is 89. The electronic configuration of actinium is [RN]6d^17s^2. It has only three ELECTRONS to lose. Therefore, actinium is generally only found in the +3-oxidation STATE.


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