Rest energy of the electron - calculation discrepancy

AI Thread Summary
The calculation of the rest energy of an electron using E=mc² yields a result of 0.512 MeV instead of the accepted 0.511 MeV due to an incorrect conversion factor. The correct conversion factor is 1.602 x 10^-19 joules per eV, not 1.6 x 10^-19. This small discrepancy in the conversion factor leads to the difference in energy values. Accurate constants are crucial for precise calculations in physics. Ensuring the use of the correct values will align results with accepted scientific standards.
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When I use E=mc2 to calc. the rest energy of an electron, I get .512Mev not .511Mev. I am using 9.109x10-31 kg for the rest mass of an electron and 2.9979x10^8 m/s for the speed of light in a vacuum.
Can anyone tell me why there ís a discrepancy between my results and the accepted answer?
 
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What are you using as the conversion factor between Joules and Mev?
 
You found my mistake. I was using 1.6x10-19joules equals 1 eV, instead of 1.602x10-19.
Thank you for your help.
 
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