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Carbon dating simple english

Nicola McDougal Nicky has taught a variety of chemistry courses at college level. Nicky has a PhD in Physical Chemistry. Ever wondered how scientists know the age of old bones in an ancient site or how old a scrap of linen is? The technique used is called carbon dating, and in this lesson we will learn what this is and how it is used. A quiz will test how much we have learned.
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Altered Carbon

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carbon - Wiktionary

Atmospheric nuclear weapon tests almost doubled the concentration of 14C in the Northern Hemisphere. It is a type of radiometric dating. The method uses the radioactive isotope carbon Most organic matter contains carbon.
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Radiocarbon dating

The word valency is derived from the Latin word "valencia" which means "capacity". It is the number of times an element can bond with another atom or molecule. Valency means how many electrons a chemical species needs to complete duplet or octet rule For example: Hydrogen atoms needs one more electron. So, their valency is 1.
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