The substance used in cancer therapy is___________?
Correct answer: B. Co
- A. Fe
- B. Co
- C. Ni
- D. Rn
Explanation
Radioactive cobalt-60 is used in radiotherapy because its gamma radiation can damage and destroy cancer cells. The likely trap is radon, which is radioactive, but cobalt-60 is the established cobalt source associated with cancer treatment in this type of question.
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About Electronic Structure of d-Block Elements
The electronic structure of d-block elements covers the filling of the (n-1)d and ns orbitals, general electronic configurations, and the exceptions shown by chromium and copper. It explains how partially filled d orbitals produce variable oxidation states, coloured ions, magnetic behaviour and complex formation, while distinguishing transition elements from elements with completely filled d subshells.
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