Section 1 Vocab Periodic table

By luvpeace177, Dec 2010

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period	horizontal row of elements in the periodic table whose properties change gradually and predictably.
element	a substance that cannot be broken down into simpler substances
group	family of elements in the periodic table that have similar physical or chemical properties.
representative element	elements in groups 1 and 2 and 13-18 in the periodic table that include metals, metalloids, and nonmetals.
transition element	elements in groups 3–12 in the periodic table, all of which are metals
metal	element that has luster, is malleable, ductile, and a good conductor of heat and electricity.
nonmetal	element that is usually a gas or brittle solid at room temperature and is a poor conductor of heat and electricity.
metalloid	element that shares some properties with both metals and nonmetals.
Mendeleev	demitri mendeleev russian chemist first to document periodic table.
Periodic Table	chart of all elements.

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