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 negatively charged electrons emitted by the nucleus. Since the mass of an electron is a tiny fraction of an atomic mass unit, the mass of a nucleus that undergoes b decay is changed by only a tiny amount. The mass number is unchanged. The nucleus contains no electrons.