where in this world Radium is in abundant?
463263
The Democratic Republic of Congo.
303458
Yes.....sulphur is in its pure form is in the earths crust, and Radon is a noble gas, meaning it is completely unreactive and can only be found in its elemental form.  It is a radioactive gas and is found naturally occurring, especially in rural areas.  The south-west of England for example has high levels of Radon gas.
1036054
It isn't always found.\n\nBut it is very, very rare on Earth's surface because it collected mainly in the phase of Earths history when it was molten, and so is mainly present only in the core now.\n\nBy contrast, meteorites which are often made of similar material to that which Earth condensed out of are often relatively abundant in it.
445826
some heavy materials emits the rays in spontaneously this is called radioactivity. this is accidentally found by Henry Becquerel
300559
One does not mine for depleted uranium. That is man made and is disposed of in guarded facilities. However, if you insist, you had best know it's qualities and make sure you are well protected with radiation gear.\n\n"Depleted uranium results from the enriching of natural uranium for use in nuclear reactors. Natural uranium is a slightly radioactive metal that is present in most rocks and soils as well as in many rivers and sea water. Natural uranium consists primarily of a mixture of two isotopes (forms) of uranium, Uranium-235 (U235) and Uranium-238 (U238), in the proportion of about 0.7 and 99.3 percent, respectively. Nuclear reactors require U235 to produce energy, therefore, the natural uranium has to be enriched to obtain the isotope U235 by removing a large part of the U238. Uranium-238 becomes DU, which is 0.7 times as radioactive as natural uranium. Since DU has a half-life of 4.5 billion years, there is very little decay of those DU materials."
310377
It depends on if you are looking at large quanities or just any ammount goes. It also depends on if you are looking at elements that are only found in compounds or not. Oxygen, hydrogen, argon, carbon, nitrogen, alluminium, silicon, iron, tugstan, lithium, potassum, titanium to name a few. almost all of the elements can be found near the earth's surface except those that are man made, usually the extremly heavy ones like plutonium.
515033
The most abundant element in the universe is hydrogen.  Nebulae are made up most of that and "dust".
843681
Si is the most abundant mineral element, but feldspar would be the most abundant mineral as far as rocks & minerals. Quartz comes in second.
325987
There  several uses for the gas of radon, here are some:\n\nEarthquake prediction \n\nTherapeutic use (Radon is obtained in hospitals for therapeutic use by pumping the radon from a radium source and sealing it in extremely small tubes so the radon can be given to the patients. This practice for the most part has been discontinued as hospitals can get the tubes of radon directly from suppliers, who make up the small tubes with the desired activity for the day of use) \n\nTreatment of cancer \n\n\nThere are several websites that you can access to better help you in your report. Here is one that might be helpful\nhttp://www.corrosionsource.com/handbook/periodic/86.htm\n\n\nHere is another:\n\nhttp://www.epa.gov/radiation/radionuclides/radon.htm\n\n\nHope they help out.
1102841
none .... South America!
941018
The only renewable mineral deposit that I saw I was in Andes (it was called 'salar '). The miners work this mine periodically (harvest), therefore it had thermal sources. This sources , deposit (all the time)  thermal waters, with same kind of minerals solved in it.\n\nRenewable mineral resources on to other planets? I don't know!
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.
184576
In lead ore. New Jersey has a large quantity and most New England states had some. It was mined extensively in the Civil war. Sweden , Mexico and Russia have large lead mining operations
833585
Rutherfordium, Rhenium, Rhodium, Ruthenium...ahh Rubies...take your pick.
17073
It is found in most planets, asteroids, and stars.
618646
You can extract it from Phosphate rock.\n\nLarge deposits are located in China, Russia, Morocco, Florida, Idaho, Tennessee, Utah, and elsewhere.
235656
From US Dept. of Energy:\n\n"As of October 31, 2005, there are 104 commercial nuclear generating units that are fully licensed by the U.S. Nuclear Regulatory Commission (NRC) to operate in the United States."