Marvin 10070712052D 1 0 0 0 0 0 999 V2000 0.0000 0.0000 0.0000 e 0 3 0 0 0 0 0 0 0 0 0 0 M CHG 1 1 1 M END > CHEBI:30225 > positron > Elementary particle not affected by the strong force having a spin ½, a positive elementary charge and a rest mass of 0.000548579903(13) u, or 0.51099906(15) MeV. > 3 > e(+); beta(+) > positron > 0.0 > 0.0 > 1 $$$$