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24 Cards in this Set
- Front
- Back
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Matter |
anything that has mass or takes up space |
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Atom |
Small particle that is a building block of matter |
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Substance |
Matter with a composition that is always the same |
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Element |
A substance that consists of just one type of known atoms |
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Compound |
A type of substance containing atoms of two or more different elements chemically bonded together |
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Mixture |
Matter that can vary in composition |
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Heterogeneous Mixture |
A type of mixture in which the individual substances are NOT evenly mixed |
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Homogeneous Mixture |
A type of mixture in which the individual substances are evenly mixed |
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Dissolve |
Means to form a solution by mixing evenly |
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Periodic Table |
a chart of the elements arranged into rows and columns according to their physical and chemical properties |
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Group |
a column on the periodic table |
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Period |
The rows on the periodic table |
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Metal |
An element that is generally shiny easily pulled into wires or hammered into thin sheets.A metal that is a good conduct of electricity |
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Luster |
The ability of metal to reflect light |
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Ductility |
The ability to be pulled into thin wires |
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Malleability |
The ability of a substance to be hammered or rolled into sheets |
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Alkali Metal |
Elements in group1 EXAMPLES: Lithium, Sodium, Potassium, Rubidium, Cesium, and Francium |
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Alkaline Earth Metal |
The elements in group 2 on the Periodic Table Example: Beryllium, Magnesium, Calcium, Strontium, Barium, and Radium |
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Transitional Element |
The elements in group 3-12 |
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Nonmetal |
Elements that have no metallic properties |
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Halogen |
An element in Group 17 of the Periodic Table Examples: Halogen Fluorine, Chlorine, Bromine, and Iodine |
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Noble Gas |
The elements in Group 18 Examples: Helium, Neon, Argon, Krypton, Xenon, and Radon |
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Metalloid |
An element that has physical and chemical properties of both metals and nonmetals Example: Boron, Silicon, Arsenic, Polonium, Tellurium, Germanium, Antimony, and Astatine |
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Semiconductor |
Conducts electricity at high temperatures, but not at low temperatures |
