where can i find it?....
2006-07-03 18:51:25 · 17 answers · asked by Hart 2 in Science & Mathematics ➔ Other - Science
One atom of Uranium. It is naturally occuring and evrything past it on the periodic table 1) exists as a product of some nuclear based reaction, 2) has a a short half life.
2006-07-03 19:15:55 · answer #1 · answered by NukinHawg 3 · 0⤊ 0⤋
Mercury is the most common one, and it can be found in many things, notably many thermometers. There's also plutonium, which comes from enriched uranium, which is a natural resource and has to be mined.
Not sure what made the other guy say lead, but according to the periodic table of the elements, lead has an atomic weight of 207.2. Plutonium, on the other hand, has an atomic weight of 244. The heaviest natural substance, though, is uranium with an atomic weight of 238.0289.
The most dense material, is Osmium which has 22.6 grams/cm^3. Iridium has 22.4
2006-07-04 01:55:11 · answer #2 · answered by spsaheli 3 · 0⤊ 0⤋
A small and heavy object would have high density. Two of the most dense materials on earth are gold and platinum. They are more dense than lead, and also rather common. So my answer to you is a gold ring.
Some of the answers you have received mention atomic mass (or atomic weight). The fact that one atom of an element is heavy doesn't necessarily mean that it has high density. Uranium, for instance, has a higher density than lead, but lower than gold and platinum.
2006-07-04 02:45:34 · answer #3 · answered by Barret 3 · 0⤊ 0⤋
Osmium is the densest element, not lead. Not much around, though. Lead fishing sinkers are about the most common small, heavy objects available.
Osmium 192 is the densest isotope for ordinary matter. The Iridium isotopes are not quite as dense.
Mixed typical Iridium isotopes are slightly denser than mixed typical Osmium Isotopes. If you get just Osmium 192, you are at your densest.
2006-07-04 01:57:29 · answer #4 · answered by Lee J 4 · 0⤊ 0⤋
Can "think" of or can actually think of and acquire?
I can think of the matter that makes up a neutron star. It is so dense that a teaspoonful of it would weight as much as Mt. Everest. Is that small (teaspoonful) and heavy (Mt Everest's weight) enough for you?
Stuff that can be acquired, yeah, lead, mercury are all good suggestions.
2006-07-04 02:06:14 · answer #5 · answered by quntmphys238 6 · 0⤊ 0⤋
smallest but heaviest is the human mind
2006-07-04 02:11:47 · answer #6 · answered by The Knowledge Server 1 · 0⤊ 0⤋
Are you thinking in terms of density? That is, mass per volume? Iridium would be the most dense.
2006-07-04 01:57:12 · answer #7 · answered by whitecusp8 2 · 0⤊ 0⤋
probebly a dead star, like a white dwarf, a teaspoon of one of those weighs as much at the Empire State Building.
2006-07-04 03:25:16 · answer #8 · answered by suppy_sup 3 · 0⤊ 0⤋
A cube of sugar size material from a "Black Hole". Could weigh more than our planet Earth.
2006-07-04 02:14:12 · answer #9 · answered by Spock 5 · 0⤊ 0⤋
hmmm... a chunk of pure.. hmmm.. what is the most dense non-radioactive material? you'd need to look it up on a periodical chart (mine is packed away at the moment)
take a look at http://www.lenntech.com/Periodic-chart-elements/density.htm
looks like a chunk of pure platinum.. hmmm.. kinda expensive.. something cheaper needed? hehe
2006-07-04 02:04:46 · answer #10 · answered by ♥Tom♥ 6 · 0⤊ 0⤋