Magnetic Moment and Principal Quantum No of electron

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SUMMARY

The magnetic moment of a revolving electron around the nucleus is directly proportional to the principal quantum number, expressed as μ ∝ n. The relationship is derived from the equations mvr = nh/2π and μ = (qωr²)/2. The velocity (v) of the electron varies inversely with n, while the radius (r) varies with n², specifically r = 0.529 n² / Z Angstrom. This understanding clarifies the correct proportionality of the magnetic moment with respect to the principal quantum number.

PREREQUISITES
  • Understanding of quantum mechanics principles
  • Familiarity with the concept of magnetic moment
  • Knowledge of the principal quantum number
  • Basic equations of circular motion in physics
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  • Study the relationship between angular momentum and magnetic moment in quantum systems
  • Explore the derivation of the Bohr model of the hydrogen atom
  • Learn about the implications of quantum numbers in atomic structure
  • Investigate the effects of electron velocity and radius on magnetic properties
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Homework Statement


The magnetic moment of a revolving electron around the nucleus varies with principal quantum number as ?

Homework Equations


mvr = nh/2π

The Attempt at a Solution


i know μ = (qωr2 )/ 2

and after that i am substituting values for r and i get μ∝ n2 but that is wrong.Help !
 
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Welcome to PF;
How do you know it's wrong?

Doesn't v vary with n also?
 
Simon Bridge said:
Welcome to PF;
How do you know it's wrong?

Doesn't v vary with n also?

Well it was a MCQ ...the answer is μ ∝ n .

I got it though . Yup , v ∝ 1/n and r ∝ n2 . [ r = 0.529 n2 / Z Angstrom & v = 2.1 x 106 x Z / n m/s ]

Damn , this was an easy one , should have got it right in the first place ..!
 

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