How about a pseudo-stable element that is non-radioactive until bombarded by neutrons, then undergoes a chain reaction, with disastrous results if there is a super-critical quantity present.
Would neutronium qualify for eka-metal status ?
Room temperature superconductors. The elements have so many electron shells, the outer layers are barely held onto. The chemical properties would probably drive most chemists mad for the same reason.Anyone have any ideas for eka-metals (Beltstrike p10 under SuperHeavy Elements; also in the Library Data of Rescue on Galatea by FASA) besides the obvious: armor ?
Room temperature superconductors. The elements have so many electron shells, the outer layers are barely held onto. The chemical properties would probably drive most chemists mad for the same reason.
If I remember my high school chemistry, the elements in each column in the periodic table have similar properties that get stronger or weaker row by row. So if you can place your eka-metals on the table you should be able to make a crude extrapolation as to its chemical properties and some physical properties too.
One possibility is to use the method Poul Anderson came up with for "Lodestar". You place a big planet close enough to a supernova to catch some of the eka-metals but not so close as to be completely vaporized (Don't ask me for details; Anderson usually gets his physics right, but I'm not going to guarantee it).According to my understanding, and Wikipedia is a good place to get the gory details, the stability of the nucleus gets lower at higher atomic numbers, and the general relationship that the number of protons and neutrons being largely equal stops. So once you get past Plutonium (which does occur naturally to my surprise) things get interesting.
I remember hearing about so called "islands of stability" in super massive nuclei but these were way up there like 140 or something, so how on earth you could make the stuff in anything like real quantities I don't know, a few atoms maybe, but tons of it?
The 'Island of Stability' is factual and has led to scientists to create (for amazingly short times) some of the Super-Heavy, Stable Elements...would have to track down citations.
Funny, although kinda long winded, that is what I said (written for the English weniers like the one in the room with me).While wikipedia is not reliable, it's generally useful.
Look for the articles which have decent sources.
For Fridge: Really, Wiki in the USPO, not sure how I feel about this and not to start a flame war,
Well, I can't Speak for Her Majesty and such Officials of the Greater Commonwealth, soo...nevermind.Actually, if you check fridge's location, it says "Canberra"... the capitol of Oz-land.
Thus, I suspect he works for the RAPO... Royal Australian Patent Office.