the energy require to excite an electron of H-atom from first orbit to second orbit is
Answers
Answered by
60
1st shell energy=-13.6eV
2nd Shell energy=-3.4eV
Energy required=1st-2nd
=-10.2eV
Energy we will give so it's +ve=10.2eV
Ionisation Energy of H=-13.6eV
And its answer is
>>10.2/13.6=
>>3/4 of its ionisation Energy
suraj005:
Answer is wrong
what is the correct option.3/4 of its ionisation energy , 1/2 of its ionisation energy , 1/4 of its ionisation energy , none
see now whether its not correct
I've solved many questions like this
ooo.... really!
Atomic Structure
yes
oh sorry now I've read and understood your questions
thanks!
this answer will be right!
Answered by
22
Answer:
The energy in the 1st shell of Hydrogen atom= - 13.6eV(electron volts).
Ionisation Energy of Hydrogen atom = - 13.6eV.
The energy in the 2nd Shell of Hydrogen atom= - 3.4eV .
As n=1 for 1st orbit and n=2 for second orbit.
Hence to find the Energy required=Energy in 1st shell - 2nd shell energy.
-13.6eV -(- 3.4)eV = - 10.2eV .
Energy given by something is always positive = 10.2eV .
Hence the energy required to excite an electron from 1st orbit to second orbit will be 10.2eV.
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