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Periodic Table
Periodic table
Term | Definition |
---|---|
periodic table | the arrangement of elements in order of their atomic numbers such that elements with similar properties fall into the same column or group. |
chemical symbol | a one, two, or three letter abbreviation of the name of an element. |
average atomic mass | the weighted average of the masses of all the naturally occurring isotopes of an element. |
metal | an element that is shiny and can conduct heat and electricity well. |
non metal | an element that conducts heat and electricity poorly. |
metalloids | an element that has properties of both metals and nonmetals. |
group | a vertical column of elements in the periodic table which share chemical properties. |
period | a horizontal row of elements in the periodic table. |