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The Initial Decay Rate of a Nuclide Is 1

question 84

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The initial decay rate of a nuclide is 1.77 × 1012/m.After 7.63 d,the decay rate is 1.82 × 1011/m.What is the half-life of the isotope?


Definitions:

Independent

not influenced or controlled by others; acting autonomously.

Average Kinetic Energy

The mean energy possessed by the particles of a substance due to their random motions, directly related to temperature.

Kinetic-Molecular Theory

A theory that explains the behavior of gases, stating that gas particles are in constant motion and that this motion has consequences for properties like pressure, volume, and temperature.

Temperature

A measure of the average kinetic energy of the particles in a sample of matter, expressed in degrees Celsius, Fahrenheit, or Kelvin.

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