Carbon 12 dating

Atoms of the same element that have different numbers of neutrons are called isotopes. Most carbon on Earth exists as the very stable isotope carbon-12, with a very small amount as carbon-13.Here’s an example using the simplest atom, hydrogen. Carbon-14 is an unstable isotope of carbon that will eventually decay at a known rate to become carbon-12.

— Scientists have created a new structure by encapsulating a single layer of fullerene molecules between two graphene sheets. — A new material with micropores might be a way to fight climate change.

Different isotopes tend to concentrate in particular organs: for example, iodine-131 settles in the thyroid gland and can reveal a variety of defects in thyroid functioning.

Another isotope, carbon-14, is useful in studying abnormalities of metabolism that underlie diabetes, gout, anemia, and acromegaly.

Buckyball sandwiches combine fullerenes and graphene. Scientists have created crystals that capture carbon dioxide much more efficiently than previously known materials, even in the ...

— The chemical properties of atoms depend on the number of protons in their nuclei, placing them into the periodic table.

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