Amount of radioactive americium

Assignment Help Chemical Engineering
Reference no: EM13885627

One type of commercial smoke detector contains a minute amount of radioactive americium-241 (241Am), which decays by -particle production. The  particles ionize molecules in the air, allowing it to conduct an electric current. When smoke particles enter, the conductivity of the air is changed and the alarm buzzes. a. Write the equation for the decay of 241 95Am by -particle production. b. The complete decay of 241Am involves successively , , , , , , , , , , , and  production. What is the final stable nucleus produced in this decay series? c. Identify the 11 intermediate nuclides.

Reference no: EM13885627

Questions Cloud

Previous years withdrawal : How much do you have to deposit today in order to allow 5 annual withdrawals, beginning at the end of year 8, with the first withdrawal of $1000 with subsequent withdrawals decrease at the rate of 5% over previous year’s withdrawal? The interest rate..
How does the starbucks of 2002 differ from the starbucks : How does the Starbucks of 2002 differ from the Starbucks of 1992?
Describes the analysis stage of addie : Describes the analysis stage of ADDIE. In this step, a training needs analysis is required. Based on the training needs analysis, describe a training course that could be used for your current job position
What are the stages of appreciative inquiry : What are the stages of appreciative inquiry and What are the main broad categories of interviews?
Amount of radioactive americium : One type of commercial smoke detector contains a minute amount of radioactive americium-241 (241Am), which decays by -particle production. The  particles ionize molecules in the air,
Subsequent withdrawals decrease : How much do you have to deposit today in order to allow 5 annual withdrawals, beginning at the end of year 8, with the first withdrawal of $1000 with subsequent withdrawals decrease at the rate of 5% over previous year’s withdrawal? The interest rate..
Are customers important element in the external environment : Contemporary best-selling management books often argue that customers are the most important element in the external environment. Do you agree? In what company situations might this statement be untrue?
What is the present value of the projected revenue stream : The revenue for a new product that will stay in market for five years is projected at $45,000 in year 1, and the revenue is expected to reduce by $5,000 per year. What is the present value of the projected revenue stream if the interest rate is 8% pe..
Four stable isotopes of iron with mass numbers : There are four stable isotopes of iron with mass numbers 54, 56, 57, and 58. There are also two radioactive isotopes: iron-53 and iron- 59. Predict modes of decay for these two isotopes. (See Table 18.2.).

Reviews

Write a Review

Chemical Engineering Questions & Answers

  Where a and b are constants and r the interatomic

1. the potential energy between two atoms can be represented as

  Shape for an above-ground dwelling

What is the optimum practical shape for an above-ground dwelling to minimize the heat losses through the building fabric? When is (or was) this optimum shape used? Why is this optimum shape seldom used in richer societies?

  Minute amount of radioactive americium

One type of commercial smoke detector contains a minute amount of radioactive americium-241 (241Am), which decays by -particle production.

  Differential energy balance

In the batch preparation of an aqueous solution, the water is first heated to 80 °C in a jacketed, agitated vessel; 1000 Imp. gal. (4545 kg) is heated from 15 °C.

  Design the manufacture of ferrous sulphate monohydrate

Design the manufacture of (tones/day) Ferrous sulphate monohydrate from waste pickle liquor. Pickling is generally associated with the removal of scale with mineral acid. Sulphuric acid is the most commonly used pickling acid.

  An electron falls from the conduction band of silicon

An electron falls from the conduction band of silicon (Si) to the valence band. The band gap of Si is 1.1 eV. What is the wavelength of the photon emitted by this process? Give your answer in nm

  Eliminate differences in composition

Eliminate Differences in composition and eliminate differences in temperature, pressure and phase

  Equivalent of four theoretical plates

A plant has a batch of 100 kmol of a liquid mixture containing 20 mol% benzene and 80 mol% chlorobenzene. It is desired to rectify this mixture at 1 atm to obtain bottoms containing only 0.1 mol% benzene. The relative volatility may be assumed con..

  Aqueous solution of sodium hydroxide

Chlorine is to be removed from a vent stream by scrubbing with a 5% w/w aqueous solution of sodium hydroxide. The vent stream is essentially nitrogen, with a maximum concentration of 5.5% w/w chlorine.

  Prepare a report on pollution due to transport

Prepare a report on pollution due to transport in Oman and its environmental impact.

  Methane by either steam reforming

Hydrogen is manufactured from methane by either steam reforming (reaction with steam) or partial oxidation (reaction with oxygen). Both processes are endothermic. What reactor temperature and pressure would you expect to be optimal for these proce..

  Physical properties of the fluid

The physical properties of the fluid are: density 875 kg/m3, viscosity 1.46 mN m-2 s. Also, determine the NPSH, at this flow rate, if the vapor pressure of the fluid at the pump suction is 25 kN/m2.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd