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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

There are two isotopes of americium, both with half-lives sufficiently long to allow the handling of large quantities. Americium-241, with a half-life of 432 years, is an α emitter used in smoke detectors. The isotope is formed from 239Pu by absorption of two neutrons followed by emission of a β particle. Write a balanced equation for this process.

Interpretation Introduction

Interpretation: The balanced nuclear equation for the synthesis of americium-241 from plutonium-239 should be written.

Concept introduction:

Balancing nuclear reaction equation: The balanced nuclear reaction should conserve both mass number and atomic number.

  • The sum of the mass number of the reactants should be equal to the sum of mass number of the products in the reaction.
  • The sum of atomic number (or the atomic charge) of the reactants should be equal to the sum of atomic number (or the atomic charge) of the products in the reaction.
Explanation

The isotope of americium-241 is formed from plutonium-239 by the absorption of two neutrons and forming plutonium-241. Then plutonium-241 undergoes beta decay to become americium-241.

The balanced equation is given below:

  P94239

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