'Carbon 14 decays' diaporamas de présentation

Physics Unit one

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CHEMISTRY 1 Nuclear Chemistry

CHEMISTRY 1 Nuclear Chemistry. Chapter 28. NUCLEAR CHEMISTRY. 1896- Antoine Becquerel discovered ___________________ He accidently left uranium ore on top of photographic plates. They became fogged from the exposure. Becquerel had 2 graduate students: _______________ _______________.

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mhhe/physsci/chemistry/essentialchemistry/flash/hybrv18.swf

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Radiocarbon dating

Radiocarbon dating. What is an atom?. An atom is the smallest part of a substance that still has all the properties of that substance. All materials are composed of atoms

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Radioactivity

Radioactivity. A. The spontaneous breakdown of an unstable atomic nucleus with the release of radiation. III. Radioactivity. Definition: Unstable isotopes change into different, more stable elements.

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Radioactivity (Exponential Example)

Radioactivity (Exponential Example). Atoms. Atoms are made of protons, electrons and neutrons. Protons and neutrons reside in the middle, or nucleus, and electrons reside in the outer portion of an atom. Atomic Number. The atomic number is the number of protons an element has.

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History of Life: Origins of Life

History of Life: Origins of Life. Chapter 14-3. Age of Earth. The earth is about 4.5 billion years old How did we measure that? Radiometric Dating = calculating the age of an object by measuring proportions of radioactive isotopes. Radiometric Dating.

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