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Grade 11Physical Chemistry

how to calculate kinetic energy of electron in the first bohr orbit if the atomic no is 5

Profile image of falguni raina
10 Years agoGrade 11
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1 Answer

Profile image of Aditya Shrivastav
10 Years ago
You should know that , For bohr atomic model ,
Total Energy = -Kinetic Energy = 2(Potential Energy)

Total Energy (in eV) =  -13.6 \frac{z^{2}}{n^{2}}  

For Z=5 , n=1
Total Energy = -13.6 x 5 x5 =  -340 eV
Kinetic Energy = 340 J