D-And F-Block Elements Ques 247

Question: Out of all the known elements, the percentage of transitional elements is approximately

Options:

A) 30%

B) 50%

C) 60%

D) 75%

Show Answer

Answer:

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% $



NCERT Chapter Video Solution

Dual Pane