ELEMENTS - A substance that cannot be broken down into simpler substances by chemical means and consists of only one type of atom., METALS - Elements that are typically lustrous, malleable, ductile, and good conductors of heat and electricity., NON-METALS - Elements that are often poor conductors, and can be solid, liquid, or gas at room temperature, METALLOIDS - A chemical element with properties intermediate between those of metals and nonmetals, often acting as semiconductors., FAMILY/GROUP - A vertical column of elements that share similar chemical properties., PERIOD - A horizontal row of chemical elements that have the same number of electron shells.,

PERIODIC TABLE

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