Question

Find out the energy of hydrogen atom in first ground state

Answer 1

Here is your answer buddy,

In hydrogen atom energy of the first excited state is -3.4 eV. Find out the KE of the same orbit of hydrogen atom.​

Hope this helps you. Have a nice day!!

Answer 2

In first ground state n=1 so it's K.E =e/n
e=13.6ev
K.E =13.6