If the radius of the electron orbit in the n = 1 level of the hydrogen atoms is 0.052 9 nm, what is its radius for the n = 5 level? (Assume the Bohr model is valid).
0.106 nm
0.265 nm
0.846 nm
1.32 nm

Answer


Convert nanometer to meter = nm*1E-9

     
       
 

nm

m

 m  rounded up
       

n = 1Bohr R

0.052

5.2E-011

       5.3E-011
       

n = 2

0.106

1.06E-010

 
       

n = 3

0.265

2.65E-010

 
       

n = 4

0.265

2.65E-010

 
       

n = 5

0.846

8.46E-010

 
       

n = 6

1.32

1.32E-009