Question

explain there is a gradual decrease in the atomic sizes of transition elements in a series with increasing atomic number
​

Answer 1

Answer:

There is a gradual decrease in the atomic sizes of transition elements in a series with increasing atomic numbers due to poor shielding effect of d-electrons, the net electrostatic attraction between the nucleus and the outermost electrons.

Explanation:

hope it will help you

Answer 2

Q. Explain there is a gradual decrease in the atomic sizes of transition elements in a series with increasing atomic numbers.

Answer

There is a gradual decrease in the atomic sizes of transition elements in a series with increasing atomic numbers because with increase in atomic number the effective nuclear charge increases as a result size decreases in the series.