PITTSBURGH (KDKA) â The Pittsburgh Steelers and the city-county Sports & Exhibition Authority have reached an agreement to add 3,000 seats to Heinz Field. The Steelers say the seats will be added to the South Plaza for the 2015 season.
The beta particle is a form of ionizing radiation related to other common forms of radiation, alpha particles and gamma rays.The beta particle is a high-speed electron or positron released from a degenerating radioactive nucleus.Being medium-energy and low mass, beta particles are one of the least damaging forms of radiation, but still a very significant health concern.he beta particle is a high-speed electron or positron released from a degenerating radioactive nucleus. Being medium-energy and low mass, beta particles are one of the least damaging forms of radiation, but still a very significant health concern.
Beta particles are actually electrons (-e) or can be  positrons.The mass of one electron or beta particle is  9.1095*10-31 kilograms or  0.000548597 AMU which is about 1/20 â¦ 00 times the mass of a  proton or neutron.eta particles are actually electrons (-e) or can be  positrons.The mass of one electron or beta particle is  9.1095*10-31 kilograms or  0.000548597 AMU which is about 1/20 â¦ 00 times the mass of a  proton or neutron.