whats more reactive silicon or aluminium!?
813454
Aluminum is more reactive.\nSome times you are suposed to look up some of the homework to learn how to solve problems\n. There is a chart of activities of elements, also knowledge of the periodic table shows whi are more reactive
518561
Mg(OH)2 n then Al(OH)3 gel
129677
I'm not sure what you are asking. If you take a piece of intrinsic silicion and want to make it n-type you add excess electrons in the form of impurities. Common dopants are Phosphorus and Arsenic for n-type. This can be done in a lot of ways, but ion implantation is common because it allows fine control over several key fabrication parameters.\n\nHave a look at http://www.aip.org/tip/INPHFA/vol-9/iss-3/p12.html
752194
Lithium is very reactive, especially as a metal interacting with water. I would classify boron as reactive.
165114
I think best way is choosing the High Silicon Cast Iron\nbecause of it`s unique corrosion resistant behavior in acidic conditions.
963128
In general, if the attractive forces between the particles is high, more energy is needed to overcome these forces and the melting point is high. Aluminium has a metallic structure, but silicon has a giant covalent lattice structure, like diamond. the melting point of silicon is higher because the bonding within its structure is very strong (stronger than that of aluminium), and so is harder to break.
268308
Carbon fibers are stronger, stiffer and lighter than glass, aluminum or steel and exhibits less thermal growth.  See the link.  Carbon nanotubes will perform even better if they can ever be cheaply mass produced.
266343
Aluminium or aluminum is the chemical element in the periodic table that has the symbol Al and atomic number 13. It is a silvery and ductile member of the poor metal group of chemical elements. Aluminium is found primarily as the ore bauxite and is remarkable for its resistance to corrosion (due to the phenomenon of passivation) and its light weight. Aluminium is used in many industries to make millions of different products and is very important to the world economy. Structural components made from aluminium and its alloys are vital to the aerospace industry and very important in other areas of transportation and building in which light weight, durability, and strength are needed.\n\nAluminium is a soft and lightweight metal with a dull silvery appearance, due to a thin layer of oxidation that forms quickly when it is exposed to air. Aluminium is nontoxic (as the metal), non-magnetic, and non-sparking. Pure aluminium has a tensile strength of about 49 megapascals (MPa) and 400 MPa if it is formed into an alloy. Aluminium is about one-third as dense as steel or copper; is malleable, ductile, and easily machined and cast; and has excellent corrosion resistance and durability due to the protective oxide layer. Aluminium mirror finish has the highest reflectance of any metal in the 200-400 nm (UV) , and the 3000-10000 nm (far IR) regions, while in the 400-700 nm visible range it is slightly outdone by silver, and in the 700-3000 (near IR) by silver, gold and copper. It is the second most malleable metal (after gold) and the sixth most ductile. Aluminium is a good heat conductor which is why it is used to make saucepans.
768677
Gallium based semi-conductor right now is too expensive to deploy. \n\nIf you want completely out of the left field, I'd go for optical processing.
273751
One major reduction in silicon costs has been with the use of amorphous, microcrystalline and polycrystalline silicon, particularly in solar panels, detectors and displays.  These forms of silicon do not have a perfect crystal structure and so will have the critical performance needed for processors, but the reduction in cost more than compensates for the electrical loss with other applications.
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
576759
synthetic diamonds.\n\n"Diamond, it turns out, is a geek's best friend. Not only is it the hardest substance known, it also has the highest thermal conductivity - tremendous heat can pass through it without causing damage. Today's speedy microprocessors run hot - at upwards of 200 degrees Fahrenheit. In fact, they can't go much faster without failing. Diamond microchips, on the other hand, could handle much higher temperatures, allowing them to run at speeds that would liquefy ordinary silicon. But manufacturers have been loath even to consider using the precious material, because it has never been possible to produce large diamond wafers affordably. With the arrival of Gemesis, the Florida-based company, and Apollo Diamond, in Boston, that is changing. Both startups plan to use the diamond jewelry business to finance their attempt to reshape the semiconducting world."
68791
Reactivity in goup 1 increses down the group from Lithium to Sodium to Potassium. Therefore, Sodium would the closest. They are all group 1 metals, just in different periods. All have one vacant electron which makes them very reactive.
802652
Zn is more reactive than Ni  (this is bcoz Zn is placed higher than Ni in the periodic table), so it would displace Ni from the solution of Ni(NO3)2. The reaction is \nZn + Ni(NO3)2 ----> Zn(NO3)2 + Ni
528074
Titanium is amongst them. Tungsten and wolfram too. That's all i can think off right now.
631016
Aluminium or aluminum (see the spelling section below) is the chemical element in the periodic table that has the symbol Al and atomic number 13. It is a silvery and ductile member of the poor metal group of chemical elements. Aluminium is found primarily as the ore bauxite and is remarkable for its resistance to corrosion (due to the phenomenon of passivation) and its light weight. Aluminium is used in many industries to make millions of different products and is very important to the world economy. Structural components made from aluminium and its alloys are vital to the aerospace industry and very important in other areas of transportation and building in which light weight, durability, and strength are needed.\n\nMore information at the link below! Hope that helps.
674613
Zirconium mimics aluminum as far as it's uses and combustibility. For instance, it can be used in pyrotechnics in much the same way as aluminum powder. However, it is more reactive that aluminum and can be used for instance in flash bulbs that ignite with pizo electricity - the old 'magic cubes' used zirconium wool in them.\n\nThe main thing that makes it more reactive is less of a tendency to form a non reactive coating in air like aluminum tends to do.