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Bell Work

NMHS Physics, M. Davis. Bell Work. Half Life—9/6/11. Complete the following tasks on your own paper. Turn you paper over when completed. Define half-life.

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Bell Work

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  1. NMHS Physics, M. Davis Bell Work

  2. Half Life—9/6/11 Complete the following tasks on your own paper. Turn you paper over when completed. Define half-life. The half life for tritium (hydrogen-3) is 12.3 years. If you have 10.0g of tritium approximately how much will remain at the end of 28 200 years?

  3. Half-life—9/8/11 Complete on your paper. The isotope neptunium-238 has a half-life of 2.0 days. If 4.0 g of neptunium-238 was produced on Monday of this week, how many grams will remain on Tuesday of next week? A sample of polonium-210 was purchased for your physics class on September 1st. Its rate of decay is 2 x 106βq. What kind of activity would be expected on June 1st of the following calendar year?

  4. Nuclear Changes-(9/9/11) Vocabulary Sort—organize the words into categories or hierarchy based on relatedness. Nuclear binding energy Strong nuclear force Nucleons Mass defect E = mc2 Electron volt (eV) MeV HMWK: Answer questions p805

  5. Average Atomic Mass—8/31, 9/1 Use the following data to calculate the average atomic masses for the elements listed. Check your answer by consulting the periodic table.

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