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2. Polonium - Wikipedia

   en.wikipedia.org/wiki/Polonium

   Polonium is a chemical element; it has symbol Po and atomic number 84. A rare and highly radioactive metal (although sometimes classified as a metalloid ) with no stable isotopes , polonium is a chalcogen and chemically similar to selenium and tellurium , though its metallic character resembles that of its horizontal neighbors in the periodic ...

3. Periodic table - Wikipedia

   en.wikipedia.org/wiki/Periodic_table

   The periodic table, ... Polonium: Astatine: Radon: Francium: Radium: Actinium: ... Periodic tables usually at least show the elements' symbols; many also provide ...

4. Template:Infobox polonium - Wikipedia

   en.wikipedia.org/wiki/Template:Infobox_polonium

   {{Infobox element}}; labels & notes: (Image) GENERAL PROPERTIES Name Symbol Pronunciation (data central) Alternative name(s) Allotropes Appearance <element> IN THE PERIODIC TABLE Periodic table Atomic number Standard atomic weight (data central) Element category (also header bg color) (sets header bg color, over 'series='-color) Group Period ...

5. List of chemical elements - Wikipedia

   en.wikipedia.org/wiki/List_of_chemical_elements

   Like the periodic table, the list below organizes the elements by the number of protons in their atoms; it can also be organized by other properties, such as atomic weight, density, and electronegativity. For more detailed information about the origins of element names, see List of chemical element name etymologies.

6. Chemical symbol - Wikipedia

   en.wikipedia.org/wiki/Chemical_symbol

   The periodic table, elements being denoted by their symbols. Chemical symbols are the abbreviations used in chemistry, ... The symbol Po is now used for polonium.

7. List of chemical elements named after places - Wikipedia

   en.wikipedia.org/wiki/List_of_chemical_elements...

   This list of chemical elements named after places includes elements named both directly and indirectly for places. 41 of the 118 chemical elements have names associated with, or specifically named for, places around the world or among astronomical objects.

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9. Naming of chemical elements - Wikipedia

   en.wikipedia.org/wiki/Naming_of_chemical_elements

   All 118 discovered elements are confirmed and have a formal name and symbol, as decided by IUPAC. The last four names and symbols were added on November 28, 2016. [1] [2] Currently there are no unconfirmed discoveries and all seven periods (rows) of the periodic table are completed.