2 new elments discovered in 2004 ?

[maddog]

Anybody aware of what two new elments discovered in 2004 ? I learned about it on the
Science channel. I am curious. I learned they were able to do this by banging some
Americium isotope with Calcium nucleus. Also mentioned is that a stable island around a
Z ~ 130 or so. Neat stuff!

Maddog

[Tim_Lou]

Do you mean element 115 and 113?
new from this website:
http://physicsweb.org/articles/news/8/2/1/1

Im a bit skeptical though:
"Although the team is confident of its results, it agrees that the new elements will require independent confirmation before finally being accepted. The discoveries will be subject to close scrutiny, especially given the recent scandal over element 118. In 2002, the Lawrence Berkeley National Lab in the US sacked a physicist after it found that he had fabricated data purporting to show the existence of this element. Claims that the element had been discovered were subsequently withdrawn."
it might have been another made up report... but who knows.

[maddog]

Thanks, Tim -- I didn't know which elements they were. I'm going hunting for more info.
I have not been aware of any new element beyon 105. How long have I had my head in
the sand....

Re: Element 115 and 113 do we know if a new orbital is required beyond the F shell ? I
have to look at a periodic table. Also how many neutrons beyond 115, huh ? Curious.

Originally Posted by Tim_Lou

...especially given the recent scandal over element 118. In 2002, the Lawrence Berkeley National Lab in the US sacked a physicist after it found that he had fabricated data purporting to show the existence of this element. Claims that the element had been discovered were subsequently withdrawn."

I didn't know stuff like that have been going on. Pfshaw, Phshaw!!

Maddog

[ImZ]

What about element 110....is it discovered yet?

[Tormod]

Originally Posted by ImZ

What about element 110....is it discovered yet?

http://pearl1.lanl.gov/periodic/elements/110.html

November 9, 1994 at 4:39 pm, the first atom with atomic number 110 was detected at the Gesellschaft fur Schwerionenforschung (GSI) in Darmstadt, in Germany. For the last ten years, this element has been the subject of an intense search by many laboratories world-wide.

[maddog]

I found a neat website on all the new developments.

webelements.com

I see that were 118 to be found (and not faked) that it would completed that valence shell.

I am still curious what the next orbital would look like ...? Hmmm.

Maddog

[BlameTheEx]

What is the fascination of elements that have a half life of milliseconds? They can have no commercial use and their properties don't lead to any useful breakthroughs in understanding.

[maddog]

Originally Posted by BlameTheEx

What is the fascination of elements that have a half life of milliseconds? They can have no commercial use and their properties don't lead to any useful breakthroughs in understanding.

Totally NOT TRUE. Try pushing a few atoms past .9c. Second, nobody has considered the
possibility of creating such short time element in a cooling vessel. Third not all transuranic
elements are thought to have such short half-life. The prevailing theory (maybe a hope) is
that there is a stable island of elements with half-life measure in years instead of the usual microseconds time frame.

Maddog

ps: Fourth, somepeople just gotta' know for no good reason.

[Tim_Lou]

at least that we have a idea that a certain element exists...... if it exists, there would probably be some stable isotopes of that elements that have longer half lives.

[BlameTheEx]

Originally Posted by maddog

Totally NOT TRUE. Try pushing a few atoms past .9c.

Do you really expect to time dilate atoms into usefulness? So milliseconds are stretched to 10's of milliseconds. But to what end?

Second, nobody has considered the possibility of creating such short time element in a cooling vessel.

And if they do, to what end? half life is not affected by temperature.

Third not all transuranic elements are thought to have such short half-life. The prevailing theory (maybe a hope) is that there is a stable island of elements with half-life measure in years instead of the usual microseconds time frame.

A hope that is vanishingly small. If they could exist, we would have them by now

Originally Posted by Tim_Lou

at least that we have a idea that a certain element exists...... if it exists, there would probably be some stable isotopes of that elements that have longer half lives.

My apologies for not making my meaning clear. The most stable isotopes have half lives of milliseconds. The rest are worse!