The periodic table is 150 years old, ... The most weird and wonderful elements in the periodic table. ... it’s krypton - although unfortunately it has nothing to do with Superman.

Atomic symbol (on the Periodic Table of Elements): Kr; Atomic weight (average mass of the atom): 83.798; ... The Jefferson Lab answers questions about krypton and other elements.

Krypton (Kr), the namesake of Superman's doomed homeworld, ... Users can download a PDF version of Enevoldsen's new periodic table from elements.wlonk.com.

Related: New periodic table shows the cosmic origins of your body’s elements Each element on the interactive table comes with a description and a list of a few different uses.

The periodic table of chemical elements hangs in front of chemistry classrooms worldwide and is an icon for science. Yet much was unknown about its history -- until now. The periodic table ...