Calculating Carbon Atom Nucleus Charge - Marco

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Discussion Overview

The discussion revolves around calculating the specific charge of the nucleus of a carbon atom, focusing on definitions, isotopes, and the necessary measurements for this calculation. The scope includes conceptual understanding and potential homework-related inquiries.

Discussion Character

  • Conceptual clarification, Homework-related

Main Points Raised

  • Marco inquires about how to calculate the specific charge of a carbon atom's nucleus.
  • Some participants clarify that specific charge is defined as the charge to mass ratio of the nucleus, not the charge to size ratio.
  • There is mention of the need to determine the charge and mass of the nucleus to find the specific charge ratio.
  • Participants note that carbon has two common isotopes, prompting a discussion on which isotope to consider for the calculation.
  • Marco suggests using carbon-12 as a potential isotope for the calculation.
  • Another participant indicates that the choice of isotope is typically specified in homework questions.

Areas of Agreement / Disagreement

Participants generally agree on the definition of specific charge as the charge to mass ratio, but there is no consensus on which isotope should be used for the calculation, as it may depend on the context of the question.

Contextual Notes

The discussion does not resolve the specific isotope choice and lacks detailed measurements for charge and mass, which are necessary for the calculation.

marco123
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hi
this is probably basic physics but how do u work out specific charge of say the nucleus of a carbon atom?
thanks
Marco
 
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marco123 said:
hi
this is probably basic physics but how do u work out specific charge of say the nucleus of a carbon atom?
thanks
Marco
Welcome to PF marco123,

Well what is the definition of specific charge?
 
hi its the charge to size ratio
 
marco123 said:
hi its the charge to size ratio
Not quite, it is the charge to mass ratio of the nucleus. So all you need to do is determine the charge and mass of the nucleus and then find the ratio of these two quantities. In the case of carbon, there are two common isotopes so you would need to decide which isotope you wish to find the specific charge of.
 
carbon 12?
 
marco123 said:
carbon 12?
That's entirely up to you. Of course if you were asked such a question, say in a homework, it would usually specify which isotope to use.
 
ok thanks for all the help!
 
marco123 said:
ok thanks for all the help!
A pleasure :smile:
 

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