Atomic Theory flash cards
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Neutron | a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.
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| Electron | a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
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| Proton | a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.
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| Element | Each element is distinguished by its atomic number, i.e., the number of protons in the nuclei of its atoms.
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| Atom | the basic unit of a chemical element.
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| Luster | Shiny, good conductor of heat and electricity
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| Ductile | Can be drawn into a thin wire
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| Malleable | Can be smashed without crumbling
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| corrosile | tending to cause corrosion
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| density | the degree of compactness of a substance
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| nobel gases | any of the gaseous elements
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| halogens | any of the elements fluorine, chlorine, bromine, iodine, and astatine, occupying group VIIA (17) of the periodic table
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| transitional metal | any of the set of metallic elements occupying a central block
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| alkali metal | any of the elements lithium, sodium, potassium, rubidium, cesium, and francium, occupying Group IA (1) of the periodic table
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| alkali earth metal | The alkaline earth metals are a group of chemical elements in the periodic table with very similar properties
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| Alloy | a metal made by combining two or more metallic elements, esp. to give greater strength or resistance to corrosion.
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