how is platinum natrually found.?
923575
Ores, yes. But platinum may also be found as pure metal in streams, the same as how gold is sometimes found. At the time of Spanish conquest, the inhabitants of what is now Colombia were using platinum found this way.
756093
In a single replacement reaction, the more active metal will replace the less active one.  Such as:\n\nCuSO4 (aq) + Zn (s) ----> ZnSO4 + Cu (s)\n\nTo the best of my knowledge,  Platinum will not replace Zinc in a sulfate solution:\n\nZnSO4 (aq) + Pt (s) ----> ZnSO4 (aq) + Pt (s) [No Reaction]\n\nPlatinum is often used as an electrode because it is difficult to replace by direct single replacement reactions.
620980
Do you want to include transition metal?\n\nWhat ever it is IP increases from left to right in a period.\n\nOpen the periodic table in a text book you will find the exact IP values.
1021348
1. Platinum-pt\n2. Boron-b+3\n3. Galium-ga+3\n4. Nitrogen-n-3\n5. Carbon-c\n6. Silicate-Si+4\n7. Fluorate-f-1\n8. Iodate-I-1\n9. Astatate\n10. and the ionic formulae for all of the transition elements that you kn\nget more here below
739924
try here:http://rds.yahoo.com/_ylt=A0oGkjr5altFbCIATYFXNyoA;_ylu=X3oDMTE2aWNrczNxBGNvbG8DdwRsA1dTMQRwb3MDOARzZWMDc3IEdnRpZANERlg1XzMw/SIG=12odtnv12/EXP=1163705465/**http%3a//www.theodoregray.com/PeriodicTable/Elements/013/index.s7.html
621708
It depends on the type of titanium and platinum as there are many variations. Biocompatiblity wise gold is very inert as well as Ti. Ti is often used in medical devices that are implanted in people.
64389
Platinum chloride should be soluble and dissociate into Pt4+ (platinum (IV))and Cl- (chloride) ions.
711696
An album is certified platinum when it's reached 1,000,000 copies sold. So quadruple platinum would be 4,000,000.
416430
There are various means of determining this, and without any specific data on what elements are involved in the answer you are looking for, the link below is the best reference I can find that can answer this question in a mostly generalized way.
373269
Gold occurs in sea water at 0.1 to 2 mg/ton (0.1 to 2 ppb by weight) depending on sample location. Compare this to mining from gold ores which is feasible at the level of 1-30 g/ton, depending on depth.\n\nNo wonder no commercially viable mechanism for performing gold extraction from sea water has yet been identified.
737415
There is a site specialized in precious metal values, you can find all the information regarding gold, silver, platinum etc, the name of the site is KITCO.COM.. ☺
235052
Nope.  Platinum is harder than Gold and Silver.\nOur fingers DO shrink and expand, though.  Dehydration, circulation, temp, anxiety, seasons... lots'o reasons.\nGive it a couple more weeks.
980986
to figure it out look for a "pt" or "plat" stamp.\nMost new platinum jewelry has a cobalt alloy blend and will have a "pt 950" or "plat 950" stamp inside the ring band. A good test you can do to check if it's got cobalt is to put it to a strong magnet. Cobalt is highly magnetic.
389575
GOLD-PLATINUM-PALLADIUM TEST\nBy Delos Toole\n\nSelect ore samples suspected to contain Gold-Platinum-Palladium and use concentrates equal to the size of one navy bean or pea. Place the concentrates in a clean test tube and add 1cc Nitric Acid and 3cc Hydrochloric Acid, (this a solution named Aqua Regia which is used regularly when testing.) Boil this over a lamp flame for about 5 to 8 minutes. Should this Aqua Regia solution contain Gold-Platinum-Palladium then the following tests will react with various colors, (good idea to practice on known samples of Gold-Platinum-Palladium for color and reaction identification and become familiar to them.)\n\nTest for Gold (Au).\n\nPrepare a solution for Stannous Chloride for each 8 hour period as this solution does not hold up under extended time periods. Dissolving Metallic Tin (Sn) in Hydrochloric Acid (HC1), where the resulted solution will be called Stannous Chloride (SnC1). Place about 2cc of HC1 in a clean test tube and add 1 or 2 small bit pieces of Metallic Tin to the test tube and bring this to a slight boil. You now have Stannous Chloride (SnC1).\n\nNow begin the gold test by making a spot test with freshly made Stannous Chloride by placing a piece of filter paper onto a clean piece of glass and place one drop of Aqua Regia solution in the center of the filter paper, and then add to this mixture one drop of freshly made Stannous Chloride solution. If gold is present there will show up on the filter paper a purple or rose colored spot when the filter paper has dried; the darker the color the more gold will be present; for low grade ore the spot color will appear plainer. Should the filter paper dry out completely, then add 1 more drop of Stannous Chloride solution to the filter paper to bring out the color.\n\nBegin the test for Platinum (Pt) by placing 20 drops of Aqua Regia solution onto a clean porcelain evaporating dish and boil this over a lamp flame until it is dry, then allow this to remain over the lamp flame for about an extended one second.\n\nPlace the dish where it can cool for a few minutes so as not to break the dish. After cooling, place 4cc of distilled water, (or water free from Chlorine), and reheat just to the boiling point. Filter this solution onto another clean porcelain evaporating dish. Add to this dish, Potassium Iodide equal to one grain of rice. Warm this solution slightly over the lamp flame and observe the color that appears. The results for this test will show if Platinum (Pt) is present as the solution will begin to turn to a light or dark rose color within a few minutes time.\n\nThe more Platinum present in the solution, (ore sample), the quicker and darker the color will appear.\n\nSulphides and other impurities, most likely will give a red color to the solution and will be mistaken for the rose color, if so, then boil off about one-half of the solution to quicken the evaporation process. Then let the porcelain dish set until completely dry, then add a few drops of clean plain water, (no chlorine water). The result will then be a bright rose color, and should there be Sulphides or other impurities in the solution they will appear as colorless. If this solution should appear red, then add a few cc’s of plain water to dilute the dark rose color to a lighter rose color, then you have Platinum (Pt).\n\nTesting for Palladium(Pd).\n\nIn the test for Platinum (Pt), upon adding Potassium Iodide (KI) and warming the procedure, if Palladium (Pd) is present in the sample ore, the solution will turn a dark color or black, which depends upon the amount of Palladium (Pd) present. The more Palladium (Pd) present, the darker the color will be, and also there will be a black precipitate in the bottom of the porcelain dish, which when adding an excess of Potassium Iodide (KI) will dissolve giving a wine-red color appearance.
1043035
pllatinum is not white gold. The pure element Au is not white gold. \n\nWhite gold is an alloy of gold mixed with white metals such as nickel, silver, and palladium. Like yellow gold, white gold glitters in a variety of carats: 18ct, 14ct, or 9ct. \n\nEighteen-carat white gold consists of 75% gold mixed with 25% white metals. New white gold rings are usually coated with a hard protective finish of rhodium, a silver-white metal like platinum. To keep a white gold ring looking its best, Gillett's recommends an annual replating of rhodium, since the coating wears off over time. \n\nPlatinum, an entirely different element than gold, is a white metal that is denser, heavier, and longer-wearing than gold. It's usually used in almost pure form and does not require a protective coating. Platinum is quite expensive, a platinum ring is perhaps twice the price of a similar ring made in white gold.
796961
you need a periodic table... just look for the symbol NA... and the atomic number 15, also look for it on the table.. it shud be under the 2-3 letter symbol of the element.
68849
Gold is usally found in veins in mines.  This is after yearssssss of a couple different mixtures that could happen with elements and combounds that get really complicated an messy.  But, scientist have created a particle accelerator that shots atoms at one another to created a desired "pure" element, but this mechine is about the size of a football feild or so and the chamber that the bombarding happens in is a room as big as your average class room and it only produces just enough gold to little dust the tip of a sewing neddle.