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8 Sci Ch 9-2 vocab

8th Grade Science Chapter 9 Lesson 2

metal A class of elements charaterized by physical properties that include shininess, malleability, ductility, and conductivity.
luster The way a mineral reflects light from its surface.
malleable A term used to describe material that can be hammered or rolled into flat sheets.
ductile A term used to describe a material that can be pulled out into a long wire.
thermal conductivity The ability of an object to transfer heat.
electrical conductivity The ability of an object to carry electric current.
reactivity The ease and speed with which an element combines, or reacts, with other elements and compounds.
corrosion The gradual wearing aay of a metal element due to a chemical reaction.
alkline Earth metal An element in Group 2 of the periodic table.
transition metal One of the elements in Group 3 through 12 of the periodic table.