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Lead is a main-group element with symbol Pb (Latin: plumbum) and atomic number 82. Lead is a soft, malleable poor metal. It is also counted as one of the heavy metals. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed to air. Lead has a shiny chrome-silver luster when it is melted into a liquid. Lead is used in building construction, lead-acid batteries, bullets and shot, weights, and is part of solder, pewter, fusible alloys. and radiation shielding. Lead has the highest atomic number of all of the stable elements, although the next higher element, bismuth, has a half-life that is so long (much longer than the age of the universe) that it can be considered stable. Its four stable isotopes have 82 protons; a "magic number" in the nuclear shell model of atomic nuclei. Lead is poisonous substance to animals. It damages the nervous system and causes brain disorders. Excessive lead also causes blood disorders in mammals. Like the element mercury, another heavy metal, lead is a potent neurotoxin that accumulates both in soft tissues and the bones. Lead poisoning has been documented from ancient Rome, ancient Greece, and ancient China. From Wikipedia under the
GNU Free Documentation License How is lead getting into various consumer products? Q. I understand lead to be a naturally-occurring metal found in the earth. What are some of the uses for it in industry and consumer products and how does lead arrive in products that shouldn't contain lead, ie lipstick? Asked by srsly? - Fri Oct 12 10:00:52 2007 - - 8 Answers - 0 Comments A. Lead is used in the manufacturing of allot of things, it's also used to make molds for products. Like sand molds are used in foundryis for pouring hot liquid iron to make a casting, lead is used as a mold in making plastic containers and parts. Because lead is a soft metal after time it will wear and pieces may rub off or even break off and get into product. But most of these factories use large magnets at the end stages of packaging to ensure no mettalic materials have made it into the product. It's hard to say how it ended up in lipstick but I am sure that it has something to do with either the molding of the plastic base or in the production line while the lipstick is being heated and poured it possible that a piece of lead from an… [cont.] Answered by Randy W - Fri Oct 12 10:16:26 2007 What lead do i need for a sony mini disc player to connect it to a stereo? Q. I bought a mini disc player of ebay and no lead is with it only the mains which lead do i need i bought a audio in and out lead of ebay it has not come yet through the post is this the correct lead? Asked by Richard K - Mon May 31 16:18:15 2010 - - 1 Answers - 0 Comments A. Yes, the audio cable should be the standard jack size (depending on the stereo model etc. of course) and will just plug into the aux (: Answered by Rawrcookie - Mon May 31 16:24:23 2010 How much exposure to lead does it take to harm an adult?
Q. I am stripping/painting an old garage that has lead paint on it. I have been wearing a respirator and goggles, but have been covered in paint dust and it has gotten into my eyes and a little in my mouth. Should I be worried? Asked by mike_b_284 - Wed Aug 20 11:27:15 2008 - - 1 Answers - 0 Comments A. That's enough lead to stop Superman! Answered by Master Blaster - Wed Aug 20 11:31:21 2008 From Yahoo Answer Search: "Lead"  chicagobreakingsports.com Fri, 23 Jul 2010 04:53:10 GMT+00:00 US to 9-0 win over Canada Chicago Breaking Sports - Tribune The Oklahoman reports: Jennie Finch's farewell tour started out with a bang in Thursday's opening game of the World Cup of Softball. ...  timesofindia.indiatimes.com Thu, 22 Jul 2010 21:09:41 GMT+00:00 to concern in govt Times of India new delhi: The self-inflicted wounds due to foreign minister SM Krishna's endorsement of Pakistan's criticism of home secretary GK Pillai for his ...  guardian.co.uk Fri, 23 Jul 2010 10:00:53 GMT+00:00 The Guardian As a journalist, I covered the G20 protests from the ground and watched the unfolding mess of the police operation lead by Commander Bob Broadhurst. ... From Google News Search: "Lead"  overclockers.ru 309px x 500px | 32.90kB [source page] GeForce 8600 GT Leadtek http www overclockers ru images ne 18 lead 01 jpg Leadtek GeForce 8500 GT  moresay.com 360px x 640px | 22.90kB [source page] ign com xbox360 image article 877 877054 prince of persia 20080527114812751 640w jpg http www the nextlevel com previews gamecube zelda wind waker zelda wind waker 11 jpg http www moresay com wp content uploads 2009 01 afro samurai lead jpg From Yahoo Image Search: "Lead"  blog.world-citizenship.org heidi Sun, 01 Aug 2010 00:15:06 GM Leadership for Environment and Development (. LEAD. ) is a global network of individuals and non-governmental organizations, committed to sustainable development. . LEAD. is an independent, not-for-profit organization, established in 1991 by ... From Google Blog Search: "Lead" |
