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Bell ringer

Bell ringer. Right out the electron configuration for Potassium Phosphorus. Light 1-electromagnetic radiation to which the organs of sight react, ranging in wavelength from about 400 to 700 nm. A man named Plank. Max Planck a German physicist

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Bell ringer

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  1. Bell ringer • Right out the electron configuration for Potassium Phosphorus

  2. Light • 1-electromagnetic radiation to which the organs of sight react, ranging in wavelength from about 400 to 700 nm

  3. A man named Plank • Max Planck a German physicist • Proposed that electrons can only gain or release energy in discrete intervals • This interval is know as plank’s constant • h=6.626x10-34 joule-seconds • E=hν, therefore energy increase by intervals • Example-stairs

  4. Planks constant explains how electrons have energy levels

  5. Interactive programs • http://www.visionlearning.com/library/flash_viewer.php?oid=1347&mid=51 • http://www.bigs.de/en/shop/anim/termsch01.swf

  6. Example Electron Configuration • F-atomic number is 9 • Ground state 2-7 excited state 2-6-1 • Cu-atomic number is 29 • Ground state 2-8-18-1 excited state 2-8-17-2 • Te-atomic number is 52 • Ground state 2-8-18-18-6 excited state 2-8-18-17-7 • Sr-atomic number is 38 • Ground state 2-8-18-8-2 excited state 2-8-18-7-3

  7. More then one element Mixture

  8. What is the excited electron configuration of Sulfur? - 2-7-7 or 2-7-6-1 • What is h? -Plank’s constant (6.626x10-34 Js) • When does an electron release energy? -When it falls from an excited state • Which series produces visible light? - Balmer-series

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