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Explain the trends in atomic radii of d block elements. OR Explain the trend in Atomic radii. - Chemistry

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Answer the following

Explain the trends in atomic radii of d block elements.

Explain the trend in Atomic radii.

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Solution

  1. Atomic radii of the elements of the transition series decrease gradually from left to right.
  2. As we move across a transition series from left to right, the nuclear charge increases by one unit at a time.
  3. The last filled electron enters a penultimate (n - 1)d subshell. However, d orbitals in an atom are less penetrating or more diffused and, therefore d electrons offer smaller screening effects.
  4. The result is that effective nuclear charge also increases as the atomic number increases along with a transition series. Hence, the atomic radii gradually decrease across a transition series from left to right.

    Trends in atomic radii of d block elements
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APPEARS IN

SCERT Maharashtra Question Bank 12th Standard HSC Chemistry Maharashtra State Board 2021
Chapter 8 Transition and Inner transition Elements
Long Answer Questions | Q 2.1
Balbharati Chemistry 12th Standard HSC for Maharashtra State Board
Chapter 8 Transition and Inner transition Elements
Exercise | Q 3.01 | Page 191
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