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table of elements
Term | Definition |
---|---|
periodic table | a chart that organizes information about all the known according to their properties |
period | in chemistry, a horizontally row of elements in the perodic table. |
group | a vertical column of elements in the perodic table, elements in a group share chemical properties |
valence electrons | an alectron that si found in the outer most shell of an atom and that determines the atoms chemcial properties |
reactivity | describes how likely an element is to form bonds with other elements |
metalliod | elements that have properties of both metals and nonmetals |
inert | unable to react chemically under normal circumstances |