Final answer:
The density of elements is usually found in Chemical Handbooks, rather than the Periodic Table which organizes elements by atomic number and chemical properties.
Step-by-step explanation:
The density of elements can typically be found in a Chemical Handbook such as the CRC Handbook of Chemistry and Physics or Lange's Handbook of Chemistry. These handbooks provide extensive data on the physical properties of chemical elements, including their density. While the Periodic Table organizes elements by their atomic number and groups them by similar properties, it usually does not provide detailed information such as density unless accompanied by an interactive element or specific annotations for that purpose.