Geo101.03.Elements[1]

Geo101.03.Elements[1] - What does the cosmos consist of ?...

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1 What does the cosmos consist of ? Atoms, elements, ions, and isotopes An illustration of the the helium atom. Dark center area is the nucleus, outer grey area is the eletron cloud. In the nucleus, the protons are in red, neutrons are in blue. Elements of the Solar System Cosmochemical Periodic Table of the Elements in the Solar System Elements of the Earth’s Upper Continental Crust Nomenclature (Elements, Isotopes) A X Z N Z is the atomic (proton) number N is the neutron number A is the mass number (N+Z) X is the chemical element symbol The atom
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2 The atom An illustration of the helium atom, depicting the nucleus (pink) and the electron cloud distribution (black). The nucleus (upper right) in helium-4 is in reality spherically symmetric and closely resembles the electron cloud, although for more complicated nuclei this is not always the case. The black bar is one ångström, equal to 10 10 m or 100,000 fm. The atom A neutral atom contains an equal number of Z protons in the nucleus and Z electrons in the electron shell. Carbon
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This note was uploaded on 04/03/2011 for the course GEOLOGY 939 taught by Professor Swisher during the Spring '11 term at Rutgers.

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Geo101.03.Elements[1] - What does the cosmos consist of ?...

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