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14 Cards in this Set
- Front
- Back
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Allotrope |
Different forms of the same element |
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Diatomic molecule |
a molecule that consists of two atoms of the same element |
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Ductile |
Ability of metals to be drawn into wires |
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Malleable |
Ability of metals and metalloids to be rolled or hammered to thin sheets |
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Metal |
Element that is typically hard, shiny, malleable, and a good conductor of heat and electricity |
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Metallic bonding |
Occurs because electrons move freely among of materials positively charged ions and explains properties such as ductility and the ability to conduct electricity |
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Metalloid |
Element that shares some properties with metals and some nonmetals |
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Nonmetal |
Element that usually is a gas or brittle solid at room temperature |
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Radioactive element |
Element, such as radium whose nucleus breaks down and then it's particles and energy |
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Salt |
Compound formed when negative ions from and acid combined with positive ions from a base |
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Semiconductor |
Materials having conductivity properties between that of metals and nonmetals |
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Sublimation |
The process of a solid changing directly to a vapor without forming a liquid |
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Transition element |
Elements in group 3 through 12 of the periodic table |
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Transuranium element |
Elements having more than 92 protons, all of which are synthetic and unstable |
