Question

In Bohr's model of hydrogen atom, if atomic radius
of the first orbit is x, then the radius of the 3rd orbit
will be


guys please help.​

Answer 1

I am not sure but I think 9r0

Answer 2

Answer:

Radius of the nth orbit of an electron is given by    r  

n

​  

=r  

o

​  

 

Z

n  

2

 

​  

 

For hydrogen atom,   Z=1

⟹ r  

n

​  

=r  

o

​  

n  

2

 

So, for third orbit    n=3

Thus radius of third orbit   r  

3

​  

=r  

o

​  

×3  

2

=9r  

o

​