Mercury, also called quicksilver, is a chemical element in the periodic table that has the symbol Hg and atomic number 80. A heavy, silvery, transition metal, mercury is one of five elements that are ...

Levels of mercury persist in tuna, decades after pollution controls were introduced to limit emissions, scientists say. The poisonous element is released by mining and burning coal and ends up in the ...

Mercury, also known as quicksilver, is a chemical element that is naturally found in nature. However, human activity has driven it into the water and soil, creating a toxic combination for people and ...

The chemical composition of a planetary body reflects its starting conditions modified by numerous processes during its formation and geological evolution. Measurements by X-ray, gamma-ray, and ...

Excavating human skeletons is the closest archaeologists can get to the people who lived in the past. Once excavated the bones are often analysed chemically in order to yield as much information as ...

There are lots of different substances but only just over a hundred elements. An element is a substance that is made up of only one kind of atom. The atoms in a particular element are the same as each ...