recent discoveries of elements (1 Viewer)

[Kukudas]

Hi guyz ^^
i was writing my syllabus notes..
and i dont get this one point

Production of Material
Section5 Nuclear chemistry provides a range of materials

Students:
- Process information from secondary sources to describe recent discoveries of elelments..

wat elements?? -_- can any1 help me~!

thank you very much!

 

[Gavvvvvin]

I think it means transuranic elements.

 

[Sam.]

Look for them on the periodic table... the ones with lots of U's.

Also look at discoveries of newer radioisotopes.

 

[ssglain]

The most recent that comes to mind is element 118 (ununoctium) back in 1999. Glen Seaborg also played with a handful of transuranics (Z=93-102) at Berkeley back in the '40s and '50s.

 

[airie]

^I thought they withdrew the statement that they discovered Uuo in the following year, since no one else in the world could replicate what they did. In 2006 though, this other team in Russia actually discovered Uuo, using a different combination of materials for bombardment (think it was Ca-48 and Cf...forgot what the mass number for Cf was ).

 

[ssglain]

^Actually, now that you mention it, I do remember reading something along those lines somewhere. *smacks forehead*

 

[morganforrest]

in 2000 a group of Russian scientists discovered ununhexium, Produced by nuclear fusion of Ca-48 with Cm-248. Only lasted for 47 milliseconds though before going back to ununquadium (no. 114). Only 3 atoms of it have ever been made though.

 

[Martyno1]

I use Ds-110. (1994)