Which of the following is the smallest in size?

Which Of The Following Is The Smallest In Size Chemistry Question

Which of the following is the smallest in size?

Options

(a) Na⁺
(b) F⁻
(c) O²⁻
(d) N³⁻

Correct Answer:

Na⁺

Explanation:

Na⁺ < F⁻ < O²⁻ < N³⁻. All are isoelectronic, effective nuclear charge is highest for Na⁺, so it has smallest size.

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Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Classification of Elements and Periodicity (94)
Subject: Chemistry (2512)

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