| ⇦ | 
| ⇨ |
The species Ar,K⁺ and Ca²⁺ contain the same number of electrons.In which order do their radii increase
Options
(a) Ca²⁺ < Ar < K⁺
(b) Ca²⁺ < K⁺ < Ar
(c) K⁺ < Ar < Ca²⁺
(d) Ar < K⁺ < Ca²⁺
Correct Answer:
Ca²⁺ < K⁺ < Ar
Explanation:
In isoelectronic species the radius decrease with increase in nuclear charge hence increasing order of radius is Ca⁺² < K⁺< Ar
Related Questions: - If 1 litre of N₂ is mixed with 2 litre of O₂, quantity explaining it is
- A corked flask containing boiling water and its vapour is allowed
- Reaction between an acyl halide and the sodium salt of a fatty acid results in
- A particular solid is very hard and has a very high melting point. In solid
- The increasing order of atomic radius for the elements Na, Rb, K and Mg is
Topics: Classification of Elements and Periodicity
(94)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If 1 litre of N₂ is mixed with 2 litre of O₂, quantity explaining it is
- A corked flask containing boiling water and its vapour is allowed
- Reaction between an acyl halide and the sodium salt of a fatty acid results in
- A particular solid is very hard and has a very high melting point. In solid
- The increasing order of atomic radius for the elements Na, Rb, K and Mg is
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
Leave a Reply