Guest

The total energy of an electron in the first excited state of hydrogen atom is about -3.4 eV. Its kinetic energy in this state is (a) 3.4eV (b) 6.8eV (c) -3.4 eV (c) -6.8 eV



The total energy of an electron in the first excited state of hydrogen atom is about -3.4 eV. Its kinetic energy in this state is


        (a)    3.4eV       


(b)    6.8eV


        (c)    -3.4 eV


        (c)    -6.8 eV


Grade:10

1 Answers

Aditi Chauhan
askIITians Faculty 396 Points
9 years ago

        (a)

K.E. =  (13.6eV) 

Mechanical energy = (13.6 eV) 

\      K.E. in 2nd orbital for hydrogen

= - Mechanical energy

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free