- #1
ZeroGravity
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Hello Friends !
I have a question regarding binding energy...
Trying to calculate the binding energy of H-1 (hydrogen nucleus).
Well it is obvious that the binding energy is zero since there is no other nucleons that the proton is bound to.
But after having collected the best possible data of the atomic mass og H-1: from
http://www.physics.nist.gov/cgi-bin...lone.pl?ele=&all=all&ascii=ascii2&isotype=all
mh = 1.00782503223(9) u
one atomic mass unit:
1 u = 1.660539040 x 10-27 kg (http://physics.nist.gov/cgi-bin/cuu/Value?ukg)
The rest mass of a proton
mp = 1.672621898 x 10-27 kg (http://physics.nist.gov/cgi-bin/cuu/Value?mp)
The rest mass og an electron
me = 9.10938356 x 10-31 kg (http://physics.nist.gov/cgi-bin/cuu/Value?me)
m_nucleus = mh-me = 1.67262304224x10^-27 kg
m_defect =mp-m_nucleus =−1.14424320000x10^-33 kg
It surprises me that the result is negative and that it is so "large" a number.
I would suspect that I would get a positive number equal to the binding energy of the elevtrone ...i.e the equivalent mass og the binding energy 13.6 eV which equals E=m*c^2=> m =2.42442x10^-35 kg
This would suggest that the hydrogen atom has a mass that is 2.42442x10^-35 kg lower than the sum of the proton and electron mass which would result in a positive massdefect of 2.42442x10^-35 kg.
My result is thus a factor of about 200 "wrong"...and negative...
Any suggestions ?
Best of Greetings
Zero Gravity
I have a question regarding binding energy...
Trying to calculate the binding energy of H-1 (hydrogen nucleus).
Well it is obvious that the binding energy is zero since there is no other nucleons that the proton is bound to.
But after having collected the best possible data of the atomic mass og H-1: from
http://www.physics.nist.gov/cgi-bin...lone.pl?ele=&all=all&ascii=ascii2&isotype=all
mh = 1.00782503223(9) u
one atomic mass unit:
1 u = 1.660539040 x 10-27 kg (http://physics.nist.gov/cgi-bin/cuu/Value?ukg)
The rest mass of a proton
mp = 1.672621898 x 10-27 kg (http://physics.nist.gov/cgi-bin/cuu/Value?mp)
The rest mass og an electron
me = 9.10938356 x 10-31 kg (http://physics.nist.gov/cgi-bin/cuu/Value?me)
m_nucleus = mh-me = 1.67262304224x10^-27 kg
m_defect =mp-m_nucleus =−1.14424320000x10^-33 kg
It surprises me that the result is negative and that it is so "large" a number.
I would suspect that I would get a positive number equal to the binding energy of the elevtrone ...i.e the equivalent mass og the binding energy 13.6 eV which equals E=m*c^2=> m =2.42442x10^-35 kg
This would suggest that the hydrogen atom has a mass that is 2.42442x10^-35 kg lower than the sum of the proton and electron mass which would result in a positive massdefect of 2.42442x10^-35 kg.
My result is thus a factor of about 200 "wrong"...and negative...
Any suggestions ?
Best of Greetings
Zero Gravity