Question

5th period transition element resembles in the chemical properties with 4th period transition elements due to ----​

Answer 1

Answer:

f-d transition is the correct answer

Answer 2

b) f-d Transition

Explanation:

Fifth-period transition elements have d and f electrons that are to be provide the screening effect . The decrease in size is specified the sizes become the same as to that of the 4d transition elements.

The 4d and 5d of transition metals shows greater enthapies of atomisation than that of the elements of 3d series due to which 4d and 5d of transition metals have more recurring metal-metal bonding in their compounds than 3d metals.

The atomic radii of the second and third row transition elements is sort of same so, they resemble one another more as compared thereto of first row elements and show similar character due to lanthanoid contractions.