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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.
Related Questions: - Which colourless gas evolves, when NH₄ Cl reacts with zinc in a dry cell battery
- Among the elements Ca, Mg, P and Cl, the order of increasing atomic radii is :
- In solid ice, oxygen atom is surrounded
- Which of the following is the buffer solution
- The extra amount of energy, which the molecules of the reactants have to absorb
Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Classification of Elements and Periodicity
(94)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which colourless gas evolves, when NH₄ Cl reacts with zinc in a dry cell battery
- Among the elements Ca, Mg, P and Cl, the order of increasing atomic radii is :
- In solid ice, oxygen atom is surrounded
- Which of the following is the buffer solution
- The extra amount of energy, which the molecules of the reactants have to absorb
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Classification of Elements and Periodicity (94)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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