In the previous question, the orbital electron has magnetic moment

In the previous question, the orbit velocity of the planet will be miniumu at

In previous question calculate orbital speed of satellite.

Transition metals and many of their compounds show paramagnetic behaviour where there are unpaired electron or electrons. The magnetic moment arises from the spin and orbital motions in ions or molecule. Magnetic moment of n unpaired electrons is given as mu=sqrt(n(n+2)) Bohr magneton Magnetic moment increases as the number of unpaired electrons increases. Q. Which among the following ions has maximum value of magnetic moment

In the calcultion of magnetic moment. The orbital magnetic moment contribution is negligible for the following ion

An electron moving around the nucleus with the an angular momentum l has a magnetic moment