• # question_answer Out of all the known elements, the percentage of transitional elements is approximately A) 30% B) 50% C) 60% D) 75%

Correct Answer: C

Solution :

$\frac{\text{Transition element }+\text{ Inner transition element}}{\text{Total element}}\times 100$ $\frac{33+28}{105}\times 100=58.09\approx 60%$

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