For the last fifty or so years, the periodic table has been incomplete. Elements after uranium on the periodic table have been synthesized for the past few decades, but there were always a few ...

"The creation of heavy elements such as uranium and plutonium necessitates extreme conditions," said physicist Matthew ...

and since they must occupy the same place in the Periodic Table he has designated them isotopes. Thus the elements uranium X” ionium, and radio-actinium are istopic. A similar example is ...

An alternative periodic table of elements focusing on highly charged ions reveals new science that could support the quest for more accurate optical atomic clocks ...

"The creation of heavy elements such as uranium and plutonium necessitates ... The key to producing the heaviest elements on the periodic table is known as the rapid neutron-capture process ...

Can you believe the periodic table has been around for over 150 years? Take this quiz to see if you can find the elements. What information do we collect from this quiz? What is the periodic table?