Question

How does atomic size vary in transition elements?

Answer 1

From left to right across a period, effective nuclear charge increases in the transition series, just like in the p block, and so atomic size decreases. Here the electrons are being added to the d orbital, where shielding is relatively poor compared to the p orbital.

Answer 2

Answer:

$\huge\red{A}\pink{N}\blue{S}\green{W}\orange{E}\red{R}$

Explanation:

From left to right across a period, effective nuclear charge increases in the transition series, just like in the p block, and so atomic size decreases. Here the electrons are being added to the d orbital, where shielding is relatively poor compared to the p orbital