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Department
Interdisciplinary Science
Course
ISCI 1001
Professor
John Buschek
Semester
Fall

Description
ISCI 1001 A Sept 17 2013 Sub­Atomic Particles ­Combine to form atoms ­Protons (p) ­Charge +1, relative size of 1 ­Neutrons (n) ­Charge 0, relative size of 12 ­Electrons (e) ­Charge ­1, relative size of 1/1000 Elements ­Fundamental types of matter ­92 natural and 20 artificial Atoms ­Nucleus (N) ­p, n inside ­e surrounding ­Smallest components that exhibit chemical properties associated with elements  M: Mass # (p,n) X: Element symbol (C, H, Pb) A: Atomic # (p) ­Same # of protons as neutrons 12      C    = 6p, 6n, 6e 6 1            2 3    H H     H 1            1 1 Hydrogen Deuterium      Tritium  ­­­­­­­­­­­­ ▯Radioactive Decay Stable Stable       Unstable ­Biota contain carbon ­Carbon comes from photosynthesis ­Upper atmosphere: 14    14     (cosmic rays)    N  ­­­­­­­­­­­­­ ▯ C ­When radioactive isotopes of atoms decay­­­­ ▯half life ­Time it takes for a sample to halve What Can Atoms Do? ­Form ions ­Take away an electron (negative), atoms now has one positive charge ­Molecu
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