How the radioactive decay depends on total mass of the element?

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Discussion Overview

The discussion revolves around the relationship between the total mass of a radioactive element and its decay process. Participants explore whether the decay of atoms is influenced by their interactions and the environment in which they exist, touching on concepts of independent decay and probability.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant questions how the decay of a radioactive element depends on its total mass and whether all atoms need to be in contact for this to be relevant.
  • Another participant suggests that if there is no chain reaction, the decay of atoms occurs independently, implying that their spatial arrangement does not affect the decay process.
  • A participant proposes that independent decay follows a simple probability rule, although this is presented as a question.
  • It is noted that the decay lifetime of beryllium-7 can be influenced by environmental factors, such as being placed in a crystal lattice, indicating that external conditions may have an effect on decay rates.

Areas of Agreement / Disagreement

Participants express differing views on the necessity of atomic contact for decay processes, and while some agree on the independence of decay, the influence of environmental factors remains a point of discussion without consensus.

Contextual Notes

There are limitations regarding assumptions about atomic interactions and the specific conditions under which decay rates may vary, which are not fully resolved in the discussion.

sanjibghosh
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how the decay depends on total mass of the radioactive element?
is it necessary that all the atoms of the element keep contact among them, for the above case?
 
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Hi sanjibghosh! :smile:

If there's no chain reaction, then the atoms decay independently, and so it doesn't matter where the individual atoms are :wink:
 
ok ,when the atoms decay independently then they follow simple probability rule (?).
 
sanjibghosh said:
ok ,when the atoms decay independently then they follow simple probability rule (?).

yes :smile:
 
thank you 'tiny-tim'
 
In the case of beryllium 7 (proton rich nucleus), which decays by the capture of an atomic electron from the K-shell (53 day half life), the lifetime can be changed slightly by putting it in different environments. or by putting it in a crystal lattice.
 
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