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Stack #1238059

continental drift A theory stating that the Earth's continents have been joined together and have moved away from each other at different times in the ...
semiconductors A solid substance that has a conductivity between that of an insulator and that of most metals, either due to the addition of an...
atom 1.The basic unit of a chemical element. 2.Such particles as a source of nuclear energy: "the power of the atom".
electrical conductivity 1. The ability or power to conduct or transmit heat, electricity, or sound. 2. The conductance of a material. 3.
alkaline-earth metals are a group of chemical elements in the periodic table with very similar properties. They are all shiny, silvery-white, somewhat reactive ...
covalent bond as used in chemistry, chemical engineering, and physics
law of conservation of mass a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system.
universal solvent hypothetical universal solvent once sought by alchemists
pure substance In chemistry, a chemical substance is a material with a specific chemical composition
lanthanides Any of the series of fifteen metallic elements from lanthanum to lutetium in the periodic table.
Created by: 17haynit