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Question: Answered & Verified by Expert
Which type of electron orbital shielding is more effective in reducing the increase in ionization energy along the 3d series?
Chemistryd and f Block ElementsNEET
Options:
  • A Inner subshell electron shielding
  • B Outer shell electron shielding
  • C s electron shielding
  • D p electron shielding
Solution:
2624 Upvotes Verified Answer
The correct answer is: Inner subshell electron shielding
The 3d electrons shield the 4s electrons from the increasing nuclear charge somewhat more effectively than the outer shell electrons can shield one another.

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