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ISOTOPES

ISOTOPES. WHAT’S AN ISOTOPE?. An Isotope is simply an atom of an element with less or more neutrons and this causes the mass number to change. This affects the density and mass number of the atom, giving it new properties and uses. Non-isotope carbon. Isotope carbon.

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ISOTOPES

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  1. ISOTOPES

  2. WHAT’S AN ISOTOPE? • An Isotope is simply an atom of an element with less or more neutrons and this causes the mass number to change. • This affects the density and mass number of the atom, giving it new properties and uses

  3. Non-isotope carbon Isotope carbon ONLY THE # OF NEUTRONS CHANGE IN AN ISOTOPE

  4. WHAT DO WE USE THEM FOR? • We use isotopes for many things, including • TELLING HOW OLD ITEMS ARE • TRACING AND MARKING CHEMICAL REACTIONS This stone age man was found preserved in the ice in the 21st century, and carbon dating was used in finding his age Although an expensive process, carbon dating is used from identifying when a fossil is from, to crime scenes to identify a timeframe of victims

  5. Carbon dating is the most common form of isotope dating Based on CARBON 14, a naturally occurring isotope of carbon with two more neutrons Based on their half lives, we can calculate how much of the isotope has decayed Half lives are how long it takes for all of the isotope to leave the vessel CARBON DATING

  6. Isotope of Hydrogen One proton, two neutron Radioactive Released in nuclear reactions Isotope of Hydrogen One proton, one neutron Naturally occurring in oceans More viscous than water TRITTIUM & DEUTERIUM

  7. Used in carbon dating Two more neutrons than regular carbon Stable Naturally occuring CARBON 14

  8. QUIZ TIME WHAT IS ISOTOPE DATING USED FOR? WHAT IS CHANGED IN AN ISOTOPE? A.) # of Protons B.) # of Electrons C.) # of Neutrons D.) # of Chuck Norris roundhouse kicks A.) Polymerization B.) Identifying age C.) MRI machines D.) Identifying Chuck Norris’s victims WHAT DOES THE DIFFERENCES IN ISOTOPES DO TO AN ELEMENT? A.) Changes its outward appearance B.) Change It’s personality C.) Change it’s mass and density D.) Change how fast Chuck Norris’s foot travels through a human head

  9. SHORT ANSWER What do scientists use in order to date an object, in relating to it’s decay? NAME AN ISOTOPE OTHER THAN CARBON 14 HEY THERE

  10. WHICH IS THE PROPER ISOTOPE? ORIGINAL GALLIUM P- 31 E- 31 N- 39 ISOTOPE #1 P- 31 E- 12 N- 39 SILLY PENGUIN, YOU CAN’T FLY ISOTOPE #3 P- 12 E- 31 N-39 ISOTOPE #2 P- 31 E- 31 N- 12

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