Which of the following is incorrect concerning the 3 d , 4 d , and 5 d transitio

Question

Which of the following is incorrect concerning the 3d, 4d, and 5d transition series?

There is a significant increase in radius in going from the 3d to the 4d metals, but the 4d and 5d metals are similar in size.

There is a general decrease in size going from left to right for each of these series due to the increasing nuclear charge.

The separation of hafnium and zirconium found together in nature is difficult due to their similarities in chemistry, which is attributed to their virtually identical sizes.

Cerium through lutetium exhibits what is referred to as the lanthanide contraction.

All of the above are correct.

There is a significant increase in radius in going from the 3d to the 4d metals, but the 4d and 5d metals are similar in size.

There is a general decrease in size going from left to right for each of these series due to the increasing nuclear charge.

The separation of hafnium and zirconium found together in nature is difficult due to their similarities in chemistry, which is attributed to their virtually identical sizes.

Cerium through lutetium exhibits what is referred to as the lanthanide contraction.

All of the above are correct.

Explanation / Answer

E. All of the above are correct.

All the given options are correct regarding to transition elements.
No one is incorrect among the given.

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