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Ch. 19


Metal Usually have common properties-they are good conductors of heat and electricity, and all but one are solid at room temperature
Malleable Metals that can hammered or rolled into sheets.
Ductile Metals that can be drawn into wires.
Metallic Bonding Positively charged metallic ions are surrounded by a cloud electrons
Radioactive element one in which the nucleus breaks down and gives off particles andenergy
Transition Element Elements in Groups 3 through 12 in the periodic table.
Nonmetal Elements that usually are gases or brittle solids at room temperature
Diatomic Molecule Consists of two atoms of the same element in a covalent bond
Salt An ionic compound that is caused by a halogen gaining an electron from a metal
Sublimation The process of a solid changing directly to a purple vapor without forming a liquid
Metalloid An element that is neither metal or nonmetal but can have the same properties.
Allotrope Different forms of the same element
Semiconductor elements that conduct an electric current under certain conditions.
Transuranium element Elements that have more than 92 protons.
Created by: airiktorrescruz