CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

Ionization energy of a Hydrogen like Bohr atom is 4 Rydbergs. It is given that 1 Rydberg=2.2×1018J and Bohr radius of Hydrogen atom is 53 pm, then 
  1. This Hydrogen like atom is of Lithium 
  2. Radius of 1st orbit of this atom is 0.26 oA
  3. Wavelength of radiation emitted when electron jumps from n = 2 to n = 1 is 303 oA
  4. Radius of 1st orbit of this atom is 0.17 oA


Solution

The correct options are
B Radius of 1st orbit of this atom is 0.26 oA
C Wavelength of radiation emitted when electron jumps from n = 2 to n = 1 is 303 oA
Ionization energy of hydrogen like atom is E=Rhc Z2 where Rhc=1 RydbergSo,4=Z2    Z=2     [Helium]
Rn=53×1012 n2Z=532×1012=26.5×1012=0.26 oA
1λ=1.1×10+7  Z2(11122)λ=1073.3=303 oA

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More


People also searched for
View More



footer-image