|a stew of meat, vegetables, potatoes, etc.|
|an extraordinary or unusual thing, person, or event; an exceptional example or instance.|
periodic table n.
A tabular arrangement of the elements according to their atomic numbers so that elements with similar chemical properties are in the same column.
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A table in which the chemical elements are arranged in order of increasing atomic number. Elements with similar properties are arranged in the same column (called a group), and elements with the same number of electron shells are arranged in the same row (called a period).