You may use table navigation commands for the screen reader of your choice. The Periodic Table of Elements. Each entry contains the atomic number, chemical symbol, and atomic mass to two decimal ...

Substances have both physical and chemical properties. Developing the periodic table The periodic table was developed by grouping elements with similar properties. This, together with a later ...

current IUPAC rules say all new elements should end with ~ium, but recommendations have been published to name all group 18 elements with the ~on suffix. This is not the end of the periodic table ...