Na⁺, Mg²⁺, Al³⁺ and Si⁴⁺ are isoelectronic. The order of their ionic size is

⇦

⇨

Na⁺, Mg²⁺, Al³⁺ and Si⁴⁺ are isoelectronic. The order of their ionic size is

Options

(a) Na⁺>Mg²⁺< Al³⁺ (b) Na⁺Al³⁺>Si⁴⁺
(c) Na⁺>Mg²⁺>Al³⁺> Si⁴⁺
(d) Na⁺ Al³⁺

Correct Answer:

Na⁺>Mg²⁺>Al³⁺> Si⁴⁺

Explanation:

Amongst isoelectronic ions, thesize of thecation decreases as the magnitude of thecharge increases

Related Questions:

1. The acidic, basic or amphoteric nature of Mn₂O₇, V₂O₅ and CrO are respectively
2. In which of the following molecules is hydrogen bridge bond present
3. Which of the following is an emulsion
4. Which of the following aqueous acid is most acidic
5. The electronic configuration of transition elements is exhibited by

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

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends