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In which of the following systems will the radius of the first orbit (n=1) be minimum?
Options
(a) Single ionised helium
(b) Deutron atom
(c) Hydrogen atom
(d) Doubly ionised lithium
Correct Answer:
Doubly ionised lithium
Explanation:
r ∝ 1 / Z. For doubly ionised lithium, Z = 3
.·. r will be minimum.
Related Questions: - In a compound microscope, the focal length of the objective is 2.5 cm and of eye lens
- If a solid ball of metal has a concentric spherical cavity with in it if the ball
- Weber/m² is equal to
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Topics: Radioactivity
(83)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In a compound microscope, the focal length of the objective is 2.5 cm and of eye lens
- If a solid ball of metal has a concentric spherical cavity with in it if the ball
- Weber/m² is equal to
- In Raman effect, Stoke’s lines are spectral lines having
- The ionization energy of Li⁺⁺ is equal to
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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“r ∝ 1 / Z. For doubly ionised lithium, Z = 3
.·. r will be minimum.”