The quantity of thorium lead per gram of thorium is 0.0062, and this, divided by the rate at which the lead is being produced, 4.72 x l^—11 grams of lead per gram of thorium per year, gives the ...

New Chemical Element In The Periodic Table Date: June 12, 2009 Source: ... with the help of the 120 m long particle accelerator at GSI and “fire” them onto a lead target.

Most chemical elements found in the human body play a vital role. Some trace elements, such as titanium and cesium, may be contaminants. Some, such as lead, mercury, arsenic, and cadmium are ...

For example, Lead is a chemical element with the symbol Pb (from the Latin for lead, plumbum).W stands for tungsten (from the word wolfram) and Na stands for sodium (from the word natrium).

Scientists have now confirmed the existence of a new element, No. 115 on the periodic table, ... For the sake of comparison, an atom of lead only has 82 protons. Gold has just 79.