GSTRExam2

GSTRExam2 - TEST 2 GSTR 332 LeAnna Kaiser Dr Berheide...

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TEST 2 GSTR 332 LeAnna Kaiser Dr. Berheide Atomic Stuff Proton : One or two primary building blocks of the nucleus; with a positive electrical charge of +1. (12) Neutron : A type of subatomic particle, located in the nucleus of the atom that carries no electrical charge & is slightly heavier than a proton; one of two primary building blocks of the nucleus. (8) Electron : tiny, negatively charged particles that surround a positively charged nucleus of an atom. ( 5). Atomic number : the number of protons in the atom nucleus Isotope : Atoms whose nuclei have the same number of protons but a different number of neutrons. Atomic mass : the total number of neutrons and protons in an atom. Atomic weight : average mass of a type of atom Fission : A reaction that produces energy when heavy radioactive nuclei split apart into fragments that together have less mass than the original isotopes. Breaking big things into smaller things. (12). Fusion : A process in which two nuclei come together to form a third, larger nucleus. When this reaction combines light elements to make heavier ones, the mass of the final nucleus may be less than the mass of its constituent parts. The “missing” nuclear mass can be converted into energy. Putting small things together to make bigger things (12). 3 Types of Radiation: Alpha Decay : When an atom’s nucleus gives off an alpha particle composed of two protons and two neutrons. The atom becomes a different, lighter element and backs up two spaces on the periodic table (12). Beta Decay : There are two kinds of beta decay: B- and B+ (12). B+ decay: A kind of radioactive decay where a neutron decays into an electron and a proton. The electron leaves and the proton stays, becoming a positive ion. Atomic # =increases. Mass= same B- Decay : A kind of radioactive decay where an electron from the outside joins with a proton from the inside and turns into a neutron. With one fewer proton and an extra electron matched to it, the particle becomes a negative ion. Atomic # =decreases. Mass= same Gamma radiation : A kind of radioactivity involving the emission of energetic electromagnetic radiation from the nucleus of an atom, with no change to the number of protons or neutrons in the atom. The only kind of radioactivity that doesn’t involve mutation from 1 element to another. When particles in a nucleus jump down energy levels, they emit lots of photons that have a short wavelength with lots of energy. (12). half-life : The rate of radioactive decay measured by the time it takes for half of a collection of isotopes to decay into another element (12). UNITS Light-Year : The distance light travels in one year, 10 trillion kilometers (about 6.2 trillion miles) (14). Astronomical Unit
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This note was uploaded on 02/11/2012 for the course GSTR 332 taught by Professor Berheide during the Spring '10 term at Berea.

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GSTRExam2 - TEST 2 GSTR 332 LeAnna Kaiser Dr Berheide...

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