atom - smallest particle of a substance, that is the building block of matter , element - A raw material made of one type of atom , compound - molecule made from two or more different elements. CO2 , periodic table - An arrangement of elements based on their atomic number , period - Rows on the periodic table. shows the number of electron shells. 7, group - columns on the periodic table that share similar properties. 18, malleable - Able to be bent or hammered flat , luster - reflect light when polished, ductile - able to be drawn into a wire ,

6th grade unit 1.3 vocab words

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