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S8P1.f
Recognize tht there r 100+ elements-some have similar properties shown on Period
Term | Definition |
---|---|
Periodic Table | A chart that organizes information about all of the known elements according their properties |
Period | a horizontal row of elements in the periodic table |
Group | a vertical column of elements in the periodic table |
Valence Electrons | an electron that is found in the outermost shell of an atom & that determines the atom's chemical properties |
Reactivity | Describes how likely an element is to form bonds with other elements |
Metalloid | elements that have properties of both metals & nonmetals |
Inert | Unable to react chemically under normal circumstances |