VDOE Science 8, Unit 2: Periodic Table Vocabulary

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Description and Tags

Vocabulary flashcards covering the periodic table, atomic structure, and properties of matter.

Physical Science

Virginia SOL

8th grade

Last updated 6:25 PM on 9/11/26
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22 Terms

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Period

a horizontal row of elements on the periodic table

<p>a horizontal row of elements on the periodic table</p>
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Group

a column of elements on the periodic table

<p>a column of elements on the periodic table</p>
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Chemical Symbol

a one or two letter abbreviation used to identify a given element on the periodic table

<p>a one or two letter abbreviation used to identify a given element on the periodic table</p>
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Metals

elements that are shiny and are good conductors of thermal energy and electric current

<p>elements that are shiny and are good conductors of thermal energy and electric current</p>
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Non Metals

elements that are dull and are poor conductors of thermal energy and electric current

<p>elements that are dull and are poor conductors of thermal energy and electric current</p>
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Metalloids

elements that have properties of both metals and nonmetals; also referred to as “semiconductors”

<p>elements that have properties of both metals and nonmetals; also referred to as “semiconductors”</p>
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Valence Electrons

an electron located in the outermost shell (or energy level) of an atom

<p>an electron located in the outermost shell (or energy level) of an atom</p>
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Element

A pure substance made of only one kind of atom

<p>A pure substance made of only one kind of atom</p>
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Periodic Table

a chart that organizes all known elements by their properties

<p>a chart that organizes all known elements by their properties</p>
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Metal

elements that are typically shiny, good conductors of heat and electricity, and malleable

<p>elements that are typically shiny, good conductors of heat and electricity, and malleable</p>
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Nonmetal

elements that are usually dull, poor conductors, and brittle when solid

<p>elements that are usually dull, poor conductors, and brittle when solid</p>
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Metalloid

elements with properties of both metals and nonmetals

<p>elements with properties of both metals and nonmetals</p>
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Conductor

a material that allows heat or electricity to flow through it easily

<p>a material that allows heat or electricity to flow through it easily</p>
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Insulator

A material that does not allow heat or electricity to flow through it easily

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Malleable

can be hammered or rolled into thin sheets without breaking

<p>can be hammered or rolled into thin sheets without breaking</p>
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Ductile

can be stretched into a wire

<p>can be stretched into a wire</p>
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Brittle

breaks or shatters easily when solid

<p>breaks or shatters easily when solid</p>
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Luster

how shiny or reflective a surface is

<p>how shiny or reflective a surface is</p>
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Reactivity

how easily an element reacts with other substances

<p>how easily an element reacts with other substances</p>
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Semiconductor

a material that conducts electricity under certain conditions (common in metalloids)

<p>a material that conducts electricity under certain conditions (common in metalloids)</p>
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Physical Property

a characteristic that can be observed or measured without changing the substance

<p>a characteristic that can be observed or measured without changing the substance</p>
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Chemical Property

A characteristic that describes how a substance reacts with others

<p>A characteristic that describes how a substance reacts with others</p>