What is the densest non-radioactive metal?
920876
Iridium, a metal of the platinum family, is white, similar to platinum, The specific gravity of iridium is only very slightly lower than osmium, which is generally credited as the heaviest known element. Calculations of the densities of iridium and osmium from the space lattices give values of 22.65 and 22.61 g/cm^3, respectively. These values may be more reliable than actual physical measurements. At present, therefore, we know that either iridium or osmium is the densest known element, but the data do not yet allow selection between the two. Although its principal use is as a hardening agent for platinum, iridium is also used to make crucibles and devices requiring high temperatures. It is also used for electrical contacts. \nThe element forms an alloy with osmium which is used for tipping pens and compass bearings.
722015
it is a noble gas, but just because something isnt solid doesnt meanits a nonmetal. metals all become gasses at high temperature. the metals are on the left side of the periodic tabl and the non metals arre on the right. xenon is all the way on the right so its a non metal.\n\nhttp://en.wikipedia.org/wiki/Periodic_table#Standard_periodic_table
38819
Transition metal.\n\nName: Copper \nSymbol: Cu \nAtomic Number: 29 \nAtomic Mass: 63.546 amu \nMelting Point: 1083.0 °C (1356.15 K, 1981.4 °F) \nBoiling Point: 2567.0 °C (2840.15 K, 4652.6 °F) \nNumber of Protons/Electrons: 29 \nNumber of Neutrons: 35 \nClassification: Transition Metal \nCrystal Structure: Cubic \nDensity @ 293 K: 8.96 g/cm3 \nColor: red/orange
35890
Unfortunately, a lot of substances are a mixture of metals and nonmetals. But here are a few suggestions:\n\n-Aluminum foil. Need I say more?\n-Dry ice, carbon dioxide, is made up of two nonmetals\n-Potassium is a metal you should be able to find as a vitamin. They also make iron and calcium supplements.\n-You might be able to find a mercury thermometer.\n-Helium balloons. \n-Gold, silver, and copper jewelry (although most jewelry will actually be alloys of a few metals)\n\nI hope that helped.
961493
You need to know more than just the electron configuration.  There is contraction from left to right on the periodic table, plus additional periodic trends that must be considered.   \n\nEven more importantly, you need to define whether you are looking for the largest element IN ITS NATURAL  STATE (i.e. Cl2, Hg metal, etc) or AS THE ION.   Atomic and ionic radii differ.\n\nMore clarity is needed here.
850664
heaviest element would be Ununoctium (118) or the one with the largest atomic number, but ununoctium only exists for a infinitesimally short time, like the many other heavy elements
36750
I don't think there are any with that atomic mass. At least not on my periodic table.
599695
Aluminum is 2.9 times as dense as iron. On the other hand, iron has roughly half the specific heat as aluminum.\n\nSpecific heat is measured in terms of how many calories of energy it takes to raise the temperature of one gram one degree centigrade. \n\nGiven two equal masses of aluminum and iron, the aluminum with the higher specific heat will take more energy to heat and give of more energy cooling. As a result, it will take longer to heat and cool. \n\nHowever, given two equal volumes of aluminum and iron, the aluminum will have only 1/3 the mass and therefore will need throw off only 2/3s as much heat to cool as the iron.
163494
The relative density of heavy hydrogene, D2, is twice the relative density of H2.\nThe difference is made by an additional neutron in each nucleus.\nThat is really subatomic.
783521
Anything from the periodic table is pure. these are all basic elements that can't be broken down into other elements. examples: hydrogen, nitrogen, iron, zinc and gold.\nclick here for the table: http://www.chem.qmul.ac.uk/iupac/AtWt/table.html
970558
Excusme Sir, lol.. Gatorade is not the world most dense liquid.It is the one and only metal-Mercury-It has a density of i think 5g/ml
739177
Because METAL is in some way 4 different evolving atoms and\n  materials according to the measurement of dense fields do in\n  scientific quantity.  By this we can mean practical, or reachable\n   thus according in some way to eliminate areas like highest\n   or wildest regions not likely to take production.  So on, under\n    the ocean, so I eliminate all except production and storing in\n    prepared or piled supply site.  Two come into active,  uranium\n    is the general metallic under cooling storages in slabs to be\n    readily available up to 40 million tons per harvest, this is like\n    a magical fuel bar supply for gigantic space stations.  The 2nd\n    choice is more likely GOLD, due to it being mapped, sited,\n    and gaining value in technology for unforeseen many years.\n    Theory only Gold smelt slab 90% style could be done in a\n     magic superior at 1 billion pounds per year for periods of 30 \n     years from existing process of purification and not going\n     deeper then 2 miles below the surface.  Nice question.
827403
Density is a function of two properties of matter- mass and volume.  So you're looking for a material that packs a lot of mass into a small space.  Probably the first hurdle the material has to clear is that it has to pe denser than itself in liquid form.  This is true of most materials that can legitimately have both a solid and liquid form, as the particles "pack in" closer together when they solidify and "spread out" as they liquify.  However, there are exceptions, like water, where the solid form is less dense than the liquid form (which is why ice floats).\n\nGenerally, as you move further up the periodic table into higher atomic numbers, elements get more dense (though exceptions certainly exist).  If you go very far up into the periodic table into say the Actinides (Uranium for example) you get into solids (largely unstable and radioactive, but solids nonetheless) that are extremely dense.  In theory however, at a high enough temperature you could possibly go further up the periodic table, heat the material to its melting point, and create a liquid that could potentially be more dense.
612990
At the bottom of the perodic table...\n\nThey are technetium (at. no. 43), which was the first element to be synthesized, promethium (at. no. 61), astatine (at. no. 85), francium (at. no. 87), and the transuranium elements (at. no. 93 and beyond in the periodic table). Some of these elements have since been shown to exist in minute amounts in nature, usually as short-lived members of natural radioactive decay series (see radioactivity).\n\nThe synthetic elements through at. no. 100 (fermium) are created by bombarding a heavy element, such as uranium or plutonium, with neutrons or alpha particles. The synthesis of the transfermium elements (elements with at. no. 101 or greater) is accomplished by the fusion of the nuclei of two lighter elements. Elements 101 through 106 were first produced by fusing the nuclei of slightly lighter elements, such as californium, with those of light elements, such as carbon. Elements 107 through 112 were first produced by fusing the nuclei of medium-weight elements, such as bismuth or lead, with those of other medium-weight elements, such as iron, nickel, or zinc. Element 114 was first produced by fusing the nuclei of plutonium and calcium and subsequently by fusing the nuclei of lead and krypton, as was element 116. Element 115 was produced by bombarding americium with calcium, and element 113 resulted from the radioactive decay of element 115. The claim by Lawrence Berkeley National Laboratory to have created element 118 has been retracted.)\n\nThe transfermium elements are produced in very small quantities (one atom at a time), and identification is therefore very difficult because of half-lives ranging from minutes to milliseconds and the need to identify the products by methods other than known chemical separations. This has led to controversy over reported discoveries and over the naming of the elements. It has been predicted that one isotope of element 114—containing 114 protons and 184 neutrons—would be very stable because its nucleus would have a full complement of protons and neutrons. Termed an “island of stability,” its half-life might be measured in years. However, none of the three isotopes of element 114 synthesized as yet have as many as 184 neutrons, and their half-lives are still in the millisecond range.
477021
Not an element; yes its still the king of hardness\nThere are experiments ongoing with low-speed nuclear bombardment of iridium with smaller nuclei which are producing very thin layers of great density that approaches the hardness of diamond.
219766
Iron = Transition Metal\nCobalt = Transition Metal\nSodium = Metal (oddly enough)\nOxygen = Nonmetal (gas)\nHelium = Nonmetal (noble gas)
795177
High MP and BP = ionic compound, giant structure or metal.\nNot soluble in water = metal or giant structure.\nCond solid = metal or possibly graphite.\nCond molten = metal or ionic compound\n\nSo it is probably a metal which will have metallic bonding.\n\nTungsten is a metal with an MP 3695, BP 5828