Possible Clues:

• Occasional table, kind of?
• Cyclical
• Appearing at intervals
• Like a table needed by chemist -- I will contribute to it
• The ____ table is an arrangement of the elements
• Regular exercise — shaving seconds off an Olympic record?
• Like a table in the chemistry lab?
• Like a table made with silver and gold?
• Every once in a while
• __ table (chart of chemical elements)