But sometimes the symbol comes from a name for the element that is not an English word. For example, Lead is a chemical element with the symbol Pb (from the Latin for lead, plumbum).W stands for ...
The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...
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Synthetic hair marketed toward Black women contains carcinogens and lead, report findsThese styles can be worn for weeks at a time, protecting the hair from breakage, exposure to the elements ... either chemical should be avoided as they are associated with serious health effects.” ...
Take your pick from this collection of links about elements and the periodic table ... correctly name chemical compounds and write chemical formulas. A main goal of many alchemists of the past was to ...
Uranium (chemical symbol U) is a naturally occurring radioactive element. In its pure form it is a silver-coloured heavy metal, similar to lead, cadmium and tungsten. Like tungsten it is very dense, ...
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