Question:
Screening effect is not observed in
Screening effect is not observed in
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Screening exists only for atoms/ions with two or more electrons.
Updated On: Apr 23, 2026
- He\(^+\)
- Li\(^{2+}\)
- Be\(^{3+}\)
- all cases
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Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Screening effect is due to inner electrons shielding outer electrons from nucleus. One-electron systems have no screening.
Step 2: Detailed Explanation:
He\(^+\) (2 e\(^-\) total, but 1 electron after ionization? Wait - He\(^+\) has 1 electron), Li\(^{2+}\) (1 e\(^-\)), Be\(^{3+}\) (1 e\(^-\)).
All are hydrogen-like species with only one electron. No inner electrons to cause screening.
Step 3: Final Answer:
Thus, screening effect is not observed in all of these.
Screening effect is due to inner electrons shielding outer electrons from nucleus. One-electron systems have no screening.
Step 2: Detailed Explanation:
He\(^+\) (2 e\(^-\) total, but 1 electron after ionization? Wait - He\(^+\) has 1 electron), Li\(^{2+}\) (1 e\(^-\)), Be\(^{3+}\) (1 e\(^-\)).
All are hydrogen-like species with only one electron. No inner electrons to cause screening.
Step 3: Final Answer:
Thus, screening effect is not observed in all of these.
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