%I #8 May 14 2024 14:05:13
%S 5,1,0,9,9,8,9,5,0
%N Electron mass energy equivalent in MeV.
%H NIST, <a href="https://physics.nist.gov/cgi-bin/cuu/Value?mec2mev">CODATA Value: electron mass energy equivalent in MeV</a>.
%F 0.510998950... MeV
%K cons,nonn
%O 0,1
%A _Benoit Cloitre_, Apr 10 2003
%E Updated from CODATA 2022 by _Andrey Zabolotskiy_, May 14 2024