The decrease in atomic radii is small in transition elements due to:
Correct answer: D. Shielding effect
- A. Intervening electrons
- B. d-shell
- C. Screening effect
- D. Shielding effect
Explanation
Due to the poor shielding effect of d-electrons, the outer electrons experience a more effective nuclear charge. Due to a greater effective nuclear charge, their size contracts slightly and thus, there is less variation among the size of transition elements.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Transition Elements
Transition elements are identified by their partially filled d subshells in atoms or common ions. The topic covers the electronic structure of d-block elements, including the filling order of 4s and 3d orbitals, variable oxidation states and the distinction between transition elements and elements with completely filled d subshells.
Practise Transition Elements
531 free Transition Elements MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.