Chapter 19 vocab
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| metal | element that typically is a hard, shiny solid, is malleable, and is a good conductor of heat and electricity
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| Malleable | ability of metals and alloys to be rolled or hammered into thin sheets
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| ductile | ability of metals to be drawn into wires.
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| metallic bonding | occurs because electrons move freely among a metal's positively charged ions and explains properties such as ductility and the ability to conduct electricity
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| radioactive element | element such as radium whose nucleus breaks down and emits particles and energy
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| transition element | jelements in groups 3 though 12 of the periodic table occur in nature as cuncombined elements and include the iron triad and coinage metals
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| 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.
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| diatomic molecule | a molecule that consists of two atoms of the same element
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| salt | compound formed when negative ions from an acid combine with positive ions from a base
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| sublimation | the process of a solid changing directly to a vapor without forming a liquid
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| metalloid | element that shares some properties with metals and some with nonmetals
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| allotrope | different forms of the same element having different molecular structures.
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| semiconductor | materials having conductivity properties between that of metals and nonmetals and having controllable conductivity parameters
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| transuranium element | elements having more than 92 protons all of which are synthetic and unstable
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To hide a column, click on the column name.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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