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 ...

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 ...

artificial element above uranium in the periodic table. It seemed he had done this and in the process showed that slow-moving neutrons were more effective than high-energy neutrons for the task.

Four have filled gaps in the periodic table of 92 elements and five have extended it beyond uranium By I. Perlman & G. T. Seaborg Join Our Community of Science Lovers!

The real neptunium sits between uranium and plutonium in the actinides, the floating bar on the periodic table that pops out from between radium and lawrencium. A silvery, metallic substance like so ...

Uranium's use in nuclear weapons is, understandably, the source of the widespread phobia felt by most for uranium. However, it is only weakly radioactive — the half-life of 238 U is 4.468 × 10 ...

The nuclear age brought with it the capacity to make trans-uranic elements, those filling spots beyond uranium on the ...

They confiscated plutonium and depleted uranium in decorative vials and ... science collectables website to complete a real-life periodic table. Scientists found the samples were harmless, but ...