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The magnetic moment of a diamagnetic ato...

The magnetic moment of a diamagnetic atom is

A

equal to zero

B

equal to one

C

between zero and one

D

much greater than one.

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If hydrogen atoms (in the ground state ) are passed through an homogeneous magnetic field, the beam is split into two parts. This interaction with the magnetic field shows that the atoms must have magnetic moment. However, the moment cannot be due to the orbital angular momentum since l=0. Hence one must assume existence of intrinsic angular momentum, which as the experiment shows, has only two permitted orientations. Spin of the electron produce angular momentum equal to S=sqrt(s(s+1))(h)/(2pi) where S=+(1)/(2) . Total spin of an atom = +(n)/(2) " or "-(n)/(2) where n is the number of unpaired electrons. The substance which contain species with unpaired electrons in their orbitals behave as paramagnetic substances. The paramagnetism is expressed in terms of magnetic moment. The magnetic moment of an atom mu_(s)sqrt(s(s+1))(eh)/(2pimc)=sqrt((n)/(2)((n)/(2)+1))(eh)/(2pimc)" "s=(n)/(2) impliesmu_(s)=sqrt(n(n+1)) B.M. 1. B.M. (Bohr magneton)= (eh)/(4pimc) If magnetic moment is zero the substance is diamagnetic. If an ion of _(25)Mn has a magnetic moment of 3.873 B.M. Then oxidation state of Mn in ion is :

If hydrogen atoms (in the ground state ) are passed through an homogeneous magnetic field, the beam is split into two parts. This interaction with the magnetic field shows that the atoms must have magnetic moment. However, the moment cannot be due to the orbital angular momentum since l=0. Hence one must assume existence of intrinsic angular momentum, which as the experiment shows, has only two permitted orientations. Spin of the electron produce angular momentum equal to S=sqrt(s(s+1))(h)/(2pi) where S=+(1)/(2) . Total spin of an atom = +(n)/(2) " or "-(n)/(2) where n is the number of unpaired electrons. The substance which contain species with unpaired electrons in their orbitals behave as paramagnetic substances. The paramagnetism is expressed in terms of magnetic moment. The magnetic moment of an atom mu_(s)sqrt(s(s+1))(eh)/(2pimc)=sqrt((n)/(2)((n)/(2)+1))(eh)/(2pimc)" "s=(n)/(2) impliesmu_(s)=sqrt(n(n+1)) B.M. 1. B.M. (Bohr magneton)= (eh)/(4pimc) If magnetic moment is zero the substance is diamagnetic. Which of the following ion has lowest magnetic moment?

MODERN PUBLICATION-TEXTUAL QUESTIONS-EXERCISE
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  2. A diamagnetic material in a magnetic field moves

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  3. The magnetic moment of a diamagnetic atom is

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  12. Magnetic field B on the axis of a circular coil and far away distance ...

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  13. A long straight wire of radius a carries a steady current I. the curre...

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  14. Which of the following conclusions can eb drawn from the result oint v...

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  15. An electron is travelling along the X-direction. It encounters a magne...

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  16. A charged particle enters a magnetic field H with its initial velocity...

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  17. A proton and an alpha particle of the same velocity enter in turn a re...

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  18. An electron (with charge 1. 6 xx 10 ^(-19) C) moving at right angles t...

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  19. In a mass spectrometer used for measuring the masses of ions, the ions...

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  20. A prot is about 1,840 time heavier than an electron. When it is accele...

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