[alkufi]

 the question say:-


1-what the main source (force) that's making electron rotation about It's self (electron spin) .
2-  what is force to making electron rotation about the nuleaus ,whereas be not fall in nucleas .

please help me this queation not easy

please in need envidance about the answer.

[FeLiXe]

1 - the spin is not an actual rotation. it is just a property of a quantum particle. it's derived from the dirac equation but I don't think there is an apparent explanation for it

2 - rotation but not leaving the nuclues: electrostatic attraction
rotation but not crashing: Heisenberg uncertainty

[alkufi]

thanks . but this not enough answer