Hydrogen 21 cm line time?

[jv11]

TL;DR

Hydrogen line 21 cm happens every 10 milion years .
For Bohr radius circumference and this time
Does formula S/t=v
Applies for this ?

I think this is silly question ,
But I need second opinion about it.
From time t=0.34x10^15 sec(21 cm hydrogen time )
And C=33.22x10^-11 ( Bohr radius circumference)

Would the speed of electron inside the hydrogen cloud be calculated :

Ve=C/t
Ve=33.22x10^-11/0.34x10^15
Ve=9.7x 10^-25m/s

Tx

 

[renormalize]

Hydrogen line 21 cm happens every 10 milion years .

What does this statement even mean?

 

[Nugatory]

Would the speed of electron inside the hydrogen cloud....

What do you mean by "the hydrogen cloud"?

But no matter what you mean by that, it makes no sense to talk about the speed of a bound electron. It may be possible to apply the notion of speed to a free electron, but nearly always momentum is more useful/informative.

 

[jv11]

Hi
HYPERFINE structure of hydrogen happens when electron spin inside the cloud changes direction (to protons spin).
It happens in f=2.9x10^-15 1/sec
Or t‎ = 0.34x10^15
The 21cm line is produced by a change in the direction of the electron's spin within this ground state.
The lowest possible energy level for an electron in a hydrogen atom is -13.6 eV, which corresponds to the ground state (n=1) in the Bohr model). At this energy level, the electron is closest to the proton, and its distance is described by the Bohr radius (approximately 0.53 x 10^-10 meters).
From average Bohr radius circumference and time t
We can calculate the speed of electron at Rb.
Ve=C/t
Ve=33.22x10^-11/0.34x10^15
Ve=9.7x10^-25m/s
If there is 9.7 x10^25 hydrogen atoms in close vicinity,every second
21 cm like will be emitted.
From this we can conclude that 1 electron inside the cloud travels the same time t=0.34x10^15s.

 

[jv11]

Does this make any sense to experts ?

 

[Nugatory]

Does this make any sense to experts ?

No. I am sorry to say that it is complete nonsense.
The Bohr was abandoned long ago because it does not adequately describe electrons and cannot be used to develop further understanding of their behaviors. It makes no sense to talk about the speed or position of a bound electron.

As this thread is based on a misconception it is closed.