which is the densest element?
541190
Osmium is the densest element. 22.6 g/ml\nhttp://www.science.uwaterloo.ca/~cchieh/cact/c120/qzelemnt.html
573382
Magnesium is the 12th element (atomic number 12).\n\nCarbon is the 6th element, but has an atomic mass of 12.
580759
Basaltic oceanic crust is more dense.\n\n^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n\nCONTINENTAL CRUST\n# Less Dense (lighter weight): average density = 2.7 gm per cubic centimeter\n# Thicker: 0 to 40 km, average 35 km under high mountains, the crust can be thickened, up to 65 km. Under the craton, the average thickness is 30 km.\n# Mineral Composition: granitic (felsic) rocks such as granodiorite and granite enriched in Potassium (K), Sodium (Na), Aluminum (Al), and Silica (Si)\n# "Floats" on top of the Mantle\n\nOCEANIC CRUST\n# More Dense (heavier): average density = 3.0 gm per cubic centimeter\n# Thinner: 0 to 10 km, average 5 km, thinnest at Mid-Ocean Ridges\n# Mineral Composition: mafic rocks such as basalt and gabbro enriched in Magnesium (Mg) and Iron (Fe)\n# Underlies Ocean Basins.
1054743
A major research institution has recently announced the discovery of the heaviest element yet known to science. This new element has been tentatively named "Administratium." Administratium has 1 neutron, 12 assistant neutrons, 75 deputy neutrons, and 111 assistant deputy neutrons, giving it an atomic mass of 312.\n\nLightest would be Hydrogen.\n\nelements consist of atoms which have protons, neutrons and electrons.
880140
Sulphur would be the biggest atom because it has the most protons, electrons, & neutrons.\n\nThose with a tendancy to gain electrons are further to the right of the periodic table. This inlcudes O, S and P (to a lesser extent).\nAl and B are further to the left on the periodic table and would have a tencancy to lose electrons.
75318
It's one of the densest metals, yet non-radioactive and inexpensive  - compared with its other cousins eg. Gold. Because it is so dense and heavy, can protect us from X rays and radioactive substances. It is also malleable and was used in lead pipes which gave everyone lead poisoning.
740842
Iron has a density of 7.86 g·cm−3 and chrome has a density of 7.15 g·cm−3 which would make Iron heavier.
441392
What element has the highest density?\n\n    Studies show that osmium and iridium share the highest densities. The reason why there are two is because there are slight discrepancies between the different measurement systems. Speaking of densities, a pinhead's volume of a piece of a dwarf star would weight more than the earth.
720666
The heaviest man made element is 112 protons but is unnamed.  #111 is name Roentgenium.
851515
the easy answer is that it is less dense, but if you want the real answer, it is most dense at 4C, here is a graph\n\nhttp://www.piercecollege.edu/offices/weather/water.html
62346
the atom is the most basic unit of matter
71291
Water has its highest density at 4 deg. C.\n\nYou might try a Yahoo! search next time.  That's how I found the info.\n\nTake care,\nDavid Roth\nwww.tutor-homework.com
664567
One should not group antimatter particles all into the word element. It is possible to make any of the elements in the form of antimatter, and for any element the antimatter equivalent would be incredibly rare here on earth. Now to say the rarest is very hard because there could be at any given point in time a number of antimatter hydrogen atoms that might seem like a large number, to the human mind, here on earth. Anti hydrogen would be the most abundant anti element, although still inconcievably rare. However, some of the heaviest non-antimatter elements that have been created in the lab probably ocasionally briefly come into existence in nature here on earth. Some of these metals might be rarer than antihydrogen, the most abundent antielement here on earth. \nNote: positrons, anti electrons, are the most abundent easily observable antiparticle, but I have left them out because they are not an element.\n\nNow, as for the universe in general: It is a real curiousity that there does not seem to be an equal amount of antimatter as matter. We humans do not now how to create matter without also creating an equal amount of antimatter. Yet, it seems as though our universe is made up almost entirely of matter... What happened to all of the antimatter during the creation of the Universe??? I don't know, and as far as I am aware of there is not a solid leading theory to explain this enigma, but many ideas have been suggested with associated mathematics. Some of them propose that the antimatter went into another dimension. Others propose that there was a very slight inequality in the quantity of matter and antimatter with the difference being the matter that is currently in existence. Still others contend that the some total of matter and antimater within the Universe are still of equal quantities, but the areas where this antimatter is hiding is too far for light to have reached us from those locations. Although I have a preference between these ideas, I will not say what it is. So, lets just say that that might be a good topic for someone interested in the subject to do some real research.
290836
Solid. Most elements at standard atmospheric temperature and pressure are solids. Some of the non-metals are gases, but only Mercury and Bromine are liquids at STP.\n\nEDIT: Gloo-gal, why answer if you don't know or don't care?
223614
copper and aluminum are best electricity conductors. I would say lead, since it's one of the densiest material out there. Heat is caused by vibrating atoms, denser material means the atoms are closer, and it's melting point is low too. As soon as you touch it with a hot soldering iron, the heat transfers right away and melts it.
821309
Smallest is Hydrogen, largest would be, although it hasn't been created yet, element 121 also called Unbiunium according to IUPAC nomenclature. I say that because that is the largest element that would be able to be produced using current particle accelerators and colliders.
607033
The order of elements in the periodic table is determined by their atomic number, or number of protons (positively charged particles. The nucleus of the element is made up of protons and neutrons (neutral subatomic particles), and nearly all of the mass of the element resides here. \n\nElectrons "circle" the nucleus to even out the charge of the atom. The electrons organize themselves in layers, with a certain number of electrons in each layer. These layers are also referred to as the valence of the electron. The first layer has 2 electrons, the second and third have 8, the fourth has 18... These layers are what give the atom its volume.\n\nSince density is mass/volume, there isn't a linear relationship for density in each successive element, but the trend is density increases from left to right and top to bottom.