is a dime a hard metal and a good conductor of heat?
111305
yes it can conduct heat, but since its so small it wont make much heat...
135424
muscle wire, a nickel-titanium alloy, although it actually contracts from the heat caused by the electric current.\n\nmay not be what you had in mind, but you could build a cool robot with it I bet.
850017
Insulators do not have free electrons to conduct heat or electricity.\n\nMetals, on the other hand, DO have free electrons, and so conduct electricity and heat.  ALL elements can be classified as either conductors, semiconductors, or insulators, depending on how easily electrons will flow.\n\nThe only exception to this rule is diamond, which is an electrical insulator (no free electrons), but an excellent heat conductor.  (The reason is that heat can be transferred by atomic vibration of the diamond crystal lattice, but electricity cannot)
906167
See the two references below about metallic bonds.  The explanation is a little too long to type in this tiny space, but the first reference explains why gold is soft and both of them explain why it is a good conductor of electricity.\n\nTypes of bonding page 4 and Metallic bonds page 5: http://www.encyclopedia.com/doc/1E1-chem-bnd.html\n\nLast section on metallic and hydrogen bonds:  http://www.encyclopedia.com/doc/1E1-chem-bnd.html
360182
Heavy Metal! Just joking. http://www.scienceproject.com/projects/intro/elementary/EX057.asp Go here, they have a lot of information.\n\nhttp://www.science.ca/askascientist/viewquestion.php?qID=1216 And this one. It is clear that aluminum conducts the best heat.
1087233
METALS ARE MALLEABLE AND DUCTILE INDEED THEY ARE VERY STRONG SOME METALS LIKE ALUMINIUM HAS A LOW DENSITY SO IT'S USED IN BUILDING AIRCRAFTS,IOW DENSITY COOKING UTENSILS ETC.. ALLOYS EG:STEEL IS ALSO USED IN UTENSILS ....COINS ARE ALLOYS OF NICKEL AND COPPER.....METALS USUALLY HAVE A HIGH MELTING POINT.......
1302
At one time dimes were made of silver.  The smaller size was because it was worth more than the nickel (which was made of nickel metal, a less expensive material).
879980
Tungsten, the metal , is shiny, it may have a streak. It does not have cleavage, it is not a crystal. It is conductive of heat and electricity, itis malleable, ductile. Wolframite, its ore, will have a streak and cleavage.
893177
Its all about mobility.  \n\nHow does the energy (in the form of heat) get transported over the structure?  Lattice vibrations, right?\n\nThe bonds have to deform in order to vibrate, and the higher electronegativity, associated with a higher bond strength, is more resistant to the imposed deformations, and therefore to transporting the heat.\n\nExcept for radiant transport (and thats a factor of T^4) the best conductive insulator or convective insulator is... a vacuum.  No mass means no bucket in which to ship the energy.
863889
Copper is used as a conductor and as a easily maliable (formable) metal.  It is also naturally anti-bacterial.
695621
I remember this question since it was on the test once:\n\nList the following kinds of matter by how well they conduct heat (from the best to the worst): Wood; air; metal; water.\n\nMy answer was the correct one and it was: Metal; water; wood; air.
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.
540767
The conductivity of aluminium is required. A detailed solution of the Heat equation (A pde) is necessary to get an accurate answer. In the absence of any simplifying assumptions, this problem is not trivial
482822
Mercury has a Rhombohedral crystal structure, which means that it is close packed.  The close packed structure of the mercury will have a greater efficiency in conducting electricity compared metals such as alkaline earth metals which are packed less efficiently having 8-co-ordinated structure.  The reason why it can conduct electricity well is because it is a metal containing atoms with relatively large numbers of free electrons and it is efficiently packed.  With such structure, the electrons flow from one atom to another when electrical field is passed through quite well.  Although it is not considered to be an ideal electrical conductor, Mercury is a fairly good conductor with electrical conductivity of 10.163 1/mohm-cm.
979004
copper is a ductile metal, which means it can be drawn into wires easily, and is not naturally very brittle. however, by certain processes, it can be made brittle. for example, by heat strenthening that is, copper is heated to high temperatures and then suddenly colled by plunging it into water. continuously doing this can make the copper more brittle.
354017
its a high pressure heat with constant movement that create volume, density conductors
297024
Nichrome (Nickel Chrome) wire is one of the more common alloys used as a heating element wire.\n\nIn a way it is correct that the higher the resistance, the more heat that will be generated.  Looking at Ohm's law, V = I * R and P = I * V.   P being power, which in a resistor is exhibited as heat.  P = I^2  * R  or P = V^2 / R\n\nWhat this is saying is that while although more resistance will produce more heat, you will also need to increase the voltage (which will increase the current) to get that heat.  So, more resistance is not the simple answer, you need to match the resistance with your electrical supply capabilities to optimize the heat output.\n\nIt would probably would be better to figure that the more current flowing through the resistor, the more resulting heat you will get.\n\nAs far as wire goes, a smaller diameter wire will have a higher resistance, and will get hotter using less current.  A larger wire will have a lower resistance and require more current to get as hot as the smaller wire.  But, again referring back to Ohm's law, the overall heat exhibited will be the result of figuring the power output for the wire (voltage multiplied by current).  The larger wire will be capable of a higher power output before it surcumbs to the heat and melts because it can carry a higher current.\n\nFor the sake of comparison, let's say that we have a short piece of thin wire and a longer piece of thick wire.  Because of the difference in lengths, they will have the same resistance.  If they are both subjected to the same electrical power supply (same volts, same amps), they will both produce the SAME amount of heat.  The smaller wire will have a higher heat DENSITY because it needs to produce the same thermal energy over a smaller area.  It will appear hotter because of this.  But, if both were used to heat water, they would in theory do exactly the same thing.