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30 Cards in this Set
- Front
- Back
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Which shell has the lowest energy level?
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K
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What is the charge and weight of an Electron?
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Charge> -1
Weight> .00055AMU |
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What is the name of the model that shows the electron's shells arond the nucleus?
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Bohr's model
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Physical presence of radioactive material in an unwanted location
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contamination
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Ionizing Radiation
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Any electromagnetic or particulate radiation capable of producing ions directly or indirectly by its passage through matter
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Electromagnetic Radiation
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No Mass,No charge,gamma and x-rays (photons)
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When an electron changes shells momentarily, what state takes place?
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excitation
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Tell me about Alpha particles
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1) Emitted from nucleus
2) Mass of 4 AMU 3) Has a t2 charge 4) Least penetrating of all ionizing radiation 5) High internal Hazard |
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Particulate Radiation
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Mass, charged or uncharged,alpha, beta neutrons
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What is a substance that cannot be broken down into simpler substances by chemical means?
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Element
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Which of the particulate radiation particles is the most penetrating and why?
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neutron, due to its lack of charge
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Radiation
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The emission and propagation of energy in the form of electromagnetic waves or particles through space of matter
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Describe characteristic x-rays
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They are produced when an Electron from an outer shell drops to a lower shell, releasing energy in the form of a photon
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Tell me about Beta particles
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1) emitted from nucleus
2) Internal/External Hazard 3) .00055 AMU 4) Either +/- charge |
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What is the purpose of the atomic mass?
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Gives the # of protons & neutrons
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What is an atom?
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The smallest unit of an element that can enter into chemical combination
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What is a compound?
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A substance composed of atoms of 2 or more elements chemically united.
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What is a molecule?
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2 or more atoms held together by covalent bonds
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How are electrons held in their positions?
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Balancing Electrostatic forces and centrifugal forces
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How are electron shells around the nucleus named?
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K (closest to the nucleus)
L,M,N,O,P |
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What is Bremsstrahlung radiation?
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When charged particles accelerated toward the nucleus and change direction due to electrostatic forces. That change in direction releases energy.
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What are atoms mostly composed of?
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Empty space
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Matter
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Nothing, what's the matter with you?(just kidding)
the correct definition is:anything that occupies space and has mass |
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The atomic structure makes use of how many quantum #'s?
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4
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What does the nucleus consist of and what is its charge?
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Neutrons & Protons
+1 charge |
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What does amu stand for and what is its purpose?
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Atomic Mass Unit
-to define the masses for parts of an atom due to their small size |
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What is the purpose of the Atomic #?
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tells the # of protons
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What is ionization?
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The process of adding or removing 1 or more electrons to create ions
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What has the same # of protons bt different # of neutrons?
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Isotope
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Who loves you baby?
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I DO!
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