{"id":63089,"date":"2023-12-08T16:59:16","date_gmt":"2023-12-08T15:59:16","guid":{"rendered":"https:\/\/blog.salesflare.com\/entity\/lead"},"modified":"2023-12-08T16:59:16","modified_gmt":"2023-12-08T15:59:16","slug":"lead","status":"publish","type":"entity","link":"https:\/\/blog.salesflare.com\/nl\/entity\/verkooplead","title":{"rendered":"lood"},"content":{"rendered":"

Lood () is een chemisch element uit de koolstofgroep met symbool Pb (van ) en atoomnummer 82. Het is een zacht en zwaar na-transitiemetaal. Lood is een zacht, kneedbaar en zwaar post-transitiemetaal. Metallisch lood heeft een blauwachtig-witte kleur nadat het vers gesneden is, maar het wordt al snel dof-grijs als het aan de lucht wordt blootgesteld. Lood heeft een glanzende chroomzilverglans als het gesmolten is tot een vloeistof. Het is ook het zwaarste niet-radioactieve element. Lood wordt gebruikt in de bouw, loodaccu's, kogels en kogelschoten, gewichten, als onderdeel van soldeer, tin, smeltbare legeringen en als stralingsschild. Lood heeft het hoogste atoomnummer van alle stabiele elementen, hoewel het eerstvolgende hogere element, bismut, \u00e9\u00e9n isotoop heeft met een halfwaardetijd die zo lang is (meer dan een miljard keer de geschatte leeftijd van het heelal) dat het als stabiel kan worden beschouwd. De vier stabiele isotopen van lood hebben 82 protonen, een magisch getal in het kernschilmodel van atoomkernen. De isotoop lood-208 heeft ook 126 neutronen, een ander magisch getal, en is dus dubbel magisch, een eigenschap die het nog stabieler maakt: lood-208 is de zwaarste bekende stabiele isotoop. Als lood wordt ingenomen, is het giftig voor dieren en mensen. Het beschadigt het zenuwstelsel en veroorzaakt hersenaandoeningen. Een teveel aan lood veroorzaakt ook bloedstoornissen bij zoogdieren. Lood is een neurotoxine dat zich zowel in weke weefsels als in de botten ophoopt. Loodvergiftiging is gedocumenteerd in het oude Rome, het oude Griekenland en het oude China.<\/p>","protected":false},"excerpt":{"rendered":"

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