We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
Americium-241 is widely used in smoke detectors. Calculate the amount of americium-241 consumed in a smoke...
Americium-241 is used in some smoke detectors. It is an alpha emitter with a half-life of 432 years. How long will it take in years for 44.0 % of an Am-241 sample to decay?
Americium-241 is used in some smoke detectors. It is an alpha emitter with a half-life of 432 years. How long will it take in years for 32.0 % of an Am-241 sample to decay? Express your answer numerically in years.
Americium-240 has a half-life of 2.12 days. (Can you see why americium-241 is used in smoke detectors rather than americium-240? See exercise 4.) How many hours does it take for 34.5% of a sample of americium-240 to decay? answer should be 31.1 hr
Americium is used in household smoke detectors as a source of ? particles. The device actually responds to the presence of ions from a fire, rather than responding to smoke. A schematic is shown in the image. (Figure 1) The entire setup is enclosed in the familiar plastic housing. The 241Am, which is an ?-emitter, is encased in an aluminum container with an opening that aims the ? particles through an air gap between electrically charged plates. The ? particles...
A typical smoke detector contains americium-241 (half-life = 432.7 years) with an activity of 1.0 microcurie. What mass of americium-241 is present?
Part VI: Apply Your Knowledge Many smoke detectors contain a small amount of the isotope Americium-241, which emits alpha radiation. Should a person walking under such a smoke detector be concerned about being hit by the alpha particles? Explain your answer using something you learned in this lab. In the medical imaging procedure known as a PET scan (Positron Emission Tomography), positrons from a radioactive tracer strike electrons in the body's tissues. This produces radiation, and this radiation is then...
<Chapter 20 practice for Quiz 12 on 23 April Smoke Detectors and Radioactive Isotopes ® 18 of 28 > 1 Review | Constants Periodic Table Part A A particular smoke detector contains 1.35 uCi of 241 Am, with a half-life of 458 years. The isotope is encased in a thin aluminum container. Calculate the mass of 241 Am in grams in the detector. Americium is used in household smoke detectors as a source of a particles. The device actually responds...
What is the activity in microcuries??? Review Intelligent Tutoring Question 20.089 smoke detectors contain a small amount of americium-241, which has a half-life of 1.70 × 105 days. Assume that the detector contains 0.20 mg of 241Am Part 1 Your answer is correct. What is the activity, in becquerels? 2.357E7 the tolerance is +/-590 Bq SHOW HINT SHOW SOLUTION LINK TO TEXT Attempts: 1 of 15 used ▼ Part 2 Your answer is incorrect. Try again. What is the activity...
Some smoke detectors (see the figure below) use the radiation produced by the decay of 241 95 Am (half-life 432 yr) to ionize air molecules, which in turn produces a steady current across two electrodes. If smoke enters the region of ionization, the alpha particles are absorbed by the smoke particulates, reducing the current across the electrodes. The electronic circuitry then sounds the alarm when it senses any current reduction. How long does it take for the activity of 241...
please help with number 6 12,35 5. The half-live of amerícium-241 is detector at the date of manufacture, what mass of americium-241 is present After 1,000.0 y? g of americium-241 is present in a smoke .0o0l 6. If the half-life of tritium (hydrogen-3) is 12.3 y, how much of a o.00444 g sample of tritium is present afrsdy After 2500y? oExplain why the amount left after 1,0000 y in Exercise 7 is not one-tenth of the amount present after 100.0...