CHAPTER 22 Nuclear Chemistry IV. Applications (p. 713 - 716) IV. Applications (p. 713 - 716) I IV III II.

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CHAPTER 22 Nuclear Chemistry IV. Applications (p ) IV. Applications (p ) I IV III II

A. Nuclear Power  Fission Reactors Cooling Tower

A. Nuclear Power  Fission Reactors

A. Nuclear Power  Fusion Reactors (not yet sustainable)

A. Nuclear Power  Fusion Reactors (not yet sustainable) Tokamak Fusion Test Reactor Princeton University National Spherical Torus Experiment

B. Synthetic Elements  Transuranium Elements  elements with atomic #s above 92  synthetically produced in nuclear reactors and accelerators  most decay very rapidly

C. Radioactive Dating  half-life measurements of radioactive elements are used to determine the age of an object  decay rate indicates amount of radioactive material  EX: 14 C - good for up to 40,000 years 238 U and 40 K - over 300,000 years

D. Nuclear Medicine  Radioisotope Tracers  absorbed by specific organs and used to diagnose diseases  Radiation Treatment  larger doses are used to kill cancerous cells in targeted organs  internal or external radiation source Radiation treatment using  -rays from cobalt-60.

E. Nuclear Weapons  Atomic Bomb  chemical explosion is used to form a critical mass of 235 U or 239 Pu  fission develops into an uncontrolled chain reaction  Hydrogen Bomb  chemical explosion  fission  fusion  fusion increases the fission rate  more powerful than the atomic bomb

F. Others  Food Irradiation   radiation is used to kill bacteria  Radioactive Tracers  explore chemical pathways  trace water flow  study plant growth, photosynthesis  Consumer Products  ionizing smoke detectors Am

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