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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Time Zones in Oregon. Oregon generally is in the Pacfic Time Zone, and a small region in the east border is in the Moutain Time Zone. Cities in Moutain Standard Time Zone include Ontario. Cities in Pacific Standard Time Zone include Portland, Eugene, Bend, Baker City, Ashland and La Grande. Daylight Saving Times are used in Idaho time zones during summer.