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Physical Science Vocab Chapter 19
This vocab list is about metals, nonmetals, and mixed groups
different forms of the same element having different molecular structures
a molecule that consists of two atoms of the same element
ability of metals to be drawn into wires
ability of metals and alloys to be rolled or hammered into thin sheets
element that typically is a hard, shiny solid, is malleable, and is a good conductor of heat and electricity
occurs because electrons move freely among a metal's positively charged ions and explains properties such as ductility and the ability to conduct electricity
element that shares some properties with metals and some with nonmetals
element that usually is a gas or brittle solid at room temperature, is not malleable or ductile, is a poor conductor of heat and electricity, and typically not shiny
element, such as radium, whose nucleus breaks down and emits particles and energy
compound formed when negative ions form an acid combine with positive ions form a base
materials having conductivity properties between that of metals (good conductors) and nonmetals (insulators) and having contollable conductivity parameters
the process of a solid changing directly to a vapor without forming a liquid
elements in Group 3 through 12 of the periodic table; occur in nature as uncombined elements and include the iron triad and coinage metals
elements having more than 92 protons, all of which are synthetic and unstable