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Atoms

Easy Questions

Modern Physics

Dual Nature of Radiation and Matter
Atoms
Nuclei
Semiconductor Electronics : Materials, Devices and Simple Circuits
  1. ​In which of the following systems will the radius of the first orbit (n = 1) be minimum ?
    1. Hydrogen atom ​
    2. Doubly ionized lithium ​
    3. Singly ionized helium​ ​
    4. Deuterium atom
Correct Option: B

r ∝
1
;
Z

Z(=3) is maximum for Li2+.


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