element that typically is a hard, shiny solid, is malleable, and is a good conductor of heat and electricity.

ability of metals and alloys to be rolled or hammered into thin sheets.

ability of metals or alloys to be pulled into wires.

occurs because electrons move freely among a metal's positively charged ions and explains properties such as ductility to conduct electricity.

element, such as radium, whose nucleus breaks down and emits particles and energy.

elements in Groups 3 through 12 of the periodic table; occur in nature as uncombined elements and include the iron triad and coinage metals.

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 is not shiny.

a molecule that consists of two atoms of the same element.

compound formed when negative ions from an acid combine with positive ions from a base.

the process of a solid changing directly to a vapor without forming a liquid.

element that shares some properties with metals and some with nonmetals.

different forms of the same element having different molecular structures.

materials having conductivity properties between that of metals and nonmetals and having controllable conductivity parameters.

elements having more than 92 protons, all of which are synthetic and unstable.

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Chapter 19 Vocab.

Term	Definition
Metal	element that typically is a hard, shiny solid, is malleable, and is a good conductor of heat and electricity.
Malleable	ability of metals and alloys to be rolled or hammered into thin sheets.
Ductile	ability of metals or alloys to be pulled into wires.
Metallic Bonding	occurs because electrons move freely among a metal's positively charged ions and explains properties such as ductility to conduct electricity.
Radioactive Element	element, such as radium, whose nucleus breaks down and emits particles and energy.
Transition Element	elements in Groups 3 through 12 of the periodic table; occur in nature as uncombined elements and include the iron triad and coinage metals.
Nonmetal	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 is not shiny.
Diatomic Molecule	a molecule that consists of two atoms of the same element.
Salt	compound formed when negative ions from an acid combine with positive ions from a base.
Sublimation	the process of a solid changing directly to a vapor without forming a liquid.
Metalloid	element that shares some properties with metals and some with nonmetals.
Allotrope	different forms of the same element having different molecular structures.
Semiconductor	materials having conductivity properties between that of metals and nonmetals and having controllable conductivity parameters.
Transuranium element	elements having more than 92 protons, all of which are synthetic and unstable.

Created by: Hilda_Munoz

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