by John Carl Villanueva on July 23, 2009. An alpha particle is a particle made up of two protons and two neutrons. Since this configuration is similar to that of a helium nucleus, itâs often referred to as a helium nucleus.The term is commonly used in nuclear physics, and is one of the three particles commonly emitted during a radioactive decay, i.e., alpha, beta, and gamma particles.ince this configuration is similar to that of a helium nucleus, itâs often referred to as a helium nucleus. The term is commonly used in nuclear physics, and is one of the three particles commonly emitted during a radioactive decay, i.e., alpha, beta, and gamma particles.
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Oregon Zip Code Listings 2016. At 98,381 square miles, Oregon is the 9th largest state in America. Administratively Oregon is divided into 1,354 towns and cities and 36 counties. The state's population in 2012 was 3,899,353, making it the 27th most populous state in America.