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.
An Alpha particle is a bare helium nuclei (two protons, two  neutrons), with a positive charge. They are relatively big  and heavy, and relatively slow moving.They do not p â¦ enetrate far  into materials; a few feet of air stops them.es. A beta particle is just an electron, while an alpha particle is effectively a helium nucleus-two protons plus two neutrons. Protons (and neutrons) are each about 2000 â¦ times heavier than an electron. Therefore, an alpha particle is about 8000 times heavier than a beta particle.