Six Atoms of Element 117 Produced
mr crypto writes "A team of Russian and American scientists has produced six atoms of a new element, number 117, that has long stood as a missing link among the heaviest bits of atomic matter ever produced. The element, still nameless, appears to point the way toward a brew of still more massive elements with chemical properties no one can predict. The researchers say that the discovery bolsters the idea of an 'island of stability' among still heavier elements."
In Soviet Russia, elements name you
"No matter where you go, there you are." -- Buckaroo Banzai
"still more massive elements with chemical properties no one can predict."
I bet one of them will look great on the tiara for Mrs. Universe pageants.
AIUI, once you know where an element fits into the Periodic Table, you have a good idea as to what its properties are based on the other elements in its group. In fact, that's one of the table's most valuable properties.
Good, inexpensive web hosting
still more massive elements with chemical properties no one can predict.
Why can't this be predicted? An element is defined by the number of protons in the nucleus, right? So why is it difficult or impossible to predict what happens when you add another proton? We already have a known sequence of over a hundred elements we can look at to see what changes as the number of protons increases.
Thanks for answering the stupid question of the day.
"Our two-party system is like a bowl of shit looking at itself in a mirror." - Lewis Black
Jumbonium?
Sig this!
Although a temporary one. Sorry, jumped the gun :)
The chemical properties are determined by the electron cloud around the atom. (Which is ofc determined by the number of protons in the core)
Nevertheless the chemical properties are completely predictable as the element will behave similar as the other elements in its group.
Best Regards
Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
What I mean is, starting with element 119 you are in to a new, 8th period of the periodic table. Ok well each two periods adds new blocks due to the electron shells. Starting at element 121, you are in that new block. As such there isn't anything to compare it against. You are now dealing with g-block elements, which don't exist in lighter elements.
Pics or it didn't happen, scientists.
Although there is a predicted island of stability (due to being nearer to a nice magic number http://en.wikipedia.org/wiki/Magic_number_(physics)). However, TFA's statement about these elements lasting days or years is wildly optimistic. By most estimates it isn't likely that we will have elements which are stable for more than at most a few minutes. However, that doesn't sound sexy so everyone talks about the island of stability a lot. A lot of scifi has had fun with the idea of very stable elements in the island being not only stable but having really weird properties (allowing warp drives, wormholes and other fun stuff). However, more likely than not even if we can make these larger these elements they won't more than a few seconds. And we will only be able to make them in very tiny quantities. Of course, they certainly won't allow stargates and all that fun stuff either, but that's at least fun to dream about.
http://science.slashdot.org/story/10/03/05/163226/First-Creation-of-Anti-Strange-Hypernuclei
This was on Slashdot a few weeks ago. And it shows us that the periodic table is without a doubt in need of a major revision from what we've always assumed to be correct.
http://www.meta-synthesis.com/webbook/35_pt/pt.html
Dozens of (the major) alternate versions are listed here as well. I personally like the Dufour Periodictree myself, as it has a nice symmetry to it that's similar to the circular one.
Speaking of periodic trends, I bet some of you are wondering just why we care about ultra heavy elements that last for roughly .0000000000002 seconds before falling apart.
The deal is, there's a rough property of periodic trends and neutron/proton ratios in which certain ratios stick together well, and one of the hopes is that once we're synthesizing some really, really heavy stuff the ratios will be such that it all sticks together again, and we will have stable, completely synthetic, super-heavy elements with cool properties.
A good quantum analog of the classical speed grandparent was talking about is the root mean square velocity (computed from the momentum operator), which need not be zero for a bound state. The Heisenberg uncertainty relation shows that a particle in any state may be observed to have a nonzero velocity.
Perhaps you are thinking that the wavefunction, as it is written in most textbooks, does not depend on time. Usually in books the time dependent factor is dropped because it is not very interesting. Also, it is incorrect to think that the motion of a wavefunction is the quantum analog of the classical motion of a particle. Always think in expectation values.
Simon's Rock College
Name ideas:
- Yetanotherium
- Unremarkablum
- Irrelevantium
- Onehundredseventeenium
- Instantlydecaysium
"Destroy science and religion. Science would re-emerge exactly the same; but not religion." - Penn Jillette, paraphrased