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Lead is a neurotoxin that accumulates in soft tissues and bones. It damages the nervous system and interferes with the function of biological enzymes, causing neurological disorders ranging from behavioral problems to brain damage, and also affects general health, cardiovascular, and renal systems.
When materials containing lead vaporize in a structure fire, the lead-laden smoke and other combustion byproducts combine to form toxic particulate matter that later permeates surfaces in the form of ultra-fine lead dust.
What is Lead. Lead (pronunciation: LED) is a soft, malleable, and ductile element having a high corrosion resistance, denoted by the chemical symbol Pb. A poor conductor of electricity, it slowly forms a dull coating when exposed to air [1].
22 Νοε 2024 · Lead, a soft, silvery white or grayish metal in Group 14 (IVa) of the periodic table. Lead is very malleable, ductile, and dense and is a poor conductor of electricity. Known in antiquity and believed by the alchemists to be the oldest of metals, lead is highly durable and resistant to corrosion.
Lead has the atomic number of 82, which is considered as the highest among all stable naturally occurring elements. Chemical Characteristics. Lead is not very reactive. It belongs to the post-transition metal group in the periodic table. Lead frequently form stable covalent bonds as compared ionic bonding. Lead reacts with acids and bases.
21 Νοε 2023 · Lead forms a thin, surface layer of lead oxide when exposed to air. This layer protects lead from further oxidation, which makes it relatively resistant to corrosion. Lead does not generally...
Currently lead is usually found in ore with zinc, silver and copper and it is extracted together with these metals. The main lead mineral in Galena (PbS) and there are also deposits of cerrussite and anglesite which are mined.
