07 Sep 13
1 edit
Since these superheavies decay so quickly, one cannot say that they have chemical properties or physical properties like melting point, density, conductivity or color. But can experts in quantum theory say theoretically what the properties of a chunk of pure element would be if only the nuclei were stable?
08 Sep 13
Originally posted by woodypusher*more planets in our solar system
Things sure have changed since I was a kid. There used to be less elements, more planets, less moons, only Saturn had rings, Diplodocus was the longest dinosaur, Brachiosaurus was the heaviest, Brontosaurus was real...hard to keep up
11 Sep 13
Originally posted by Paul Dirac IIThe quantum model of the hydrogen atom is a truly complicated beast, though it involves only a single proton "orbited" by a single electron. Maybe someone can set me straight here, but I don't think physicists to this day have managed to work out the complete model of the next element in line, which is helium. And anyway a quantum model doesn't necessarily bear up when you have more than one atom of a given element present in a solid mass, so it will probably be useless in predicting melting temperatures under various atmospheric conditions.
Since these superheavies decay so quickly, one cannot say that they have chemical properties or physical properties like melting point, density, conductivity or color. But can experts in quantum theory say theoretically what the properties of a chunk of pure element would be if only the nuclei were stable?
Science. It has gone so far, yet has so far to go...
11 Sep 13
Originally posted by SoothfastIn fact the Problem of the H2+ molecule is the most difficult entity yet described (nearly) perfectly by equations.
The quantum model of the hydrogen atom is a truly complicated beast, though it involves only a single proton "orbited" by a single electron. Maybe someone can set me straight here, but I don't think physicists to this day have managed to work out the complete model of the next element in line, which is helium. And anyway a quantum model doesn't necessari ...[text shortened]... der various atmospheric conditions.
Science. It has gone so far, yet has so far to go...
The Problem is in the elctrons. Look up the "three Body Problem".
But for metals we have a quite good Approximation of physical properties via a hypothetical grid and the electron gas Approximation.