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Chemistry in Life

Radiocarbon dating

Radiocarbon dating (also referred to as carbon dating or carbon-14 dating) is a method for determining the age of an object containing organic material by using the properties of radiocarbon (C-14), a radioactive isotope of carbon. The method was developed by Willard Libby in the late 1940s and soon became a standard tool for archaeologists. Libby received the Nobel Prize for …

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Gemstones Colors and Transition Metals

Gemstones are minerals that can be polished or cut for use as an ornament or jewelry. The color of a gemstone comes from the presence of trace amounts of transition metals. Take a look at the colors of common gemstones and the metals responsible for their color. Amethyst The name for amethyst derives from the Greek and Roman belief that …

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