Calculating Specific Charge: U-238 Example

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SUMMARY

The discussion centers on calculating the specific charge of U-238, which is defined as the ratio of charge to mass. Specific charge is relevant for both charged and uncharged atoms, with neutral atoms having a specific charge of zero. When U-238 is ionized, it acquires a non-zero specific charge. The conversation clarifies that all nuclei typically have an equal number of protons and electrons, resulting in a neutral charge unless ionization occurs.

PREREQUISITES
  • Understanding of atomic structure, including protons, neutrons, and electrons.
  • Familiarity with the concept of ionization and its effects on atomic charge.
  • Basic knowledge of specific charge calculations (charge/mass).
  • Awareness of U-238's properties and its role in nuclear chemistry.
NEXT STEPS
  • Research the specific charge calculation for various isotopes, including U-238.
  • Explore the effects of ionization on atomic charge and specific charge.
  • Learn about the implications of specific charge in nuclear physics and chemistry.
  • Investigate the properties of other isotopes and their specific charges.
USEFUL FOR

Students and professionals in physics, chemistry, and nuclear science, particularly those interested in atomic structure and charge calculations.

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Hi all,

I am having trouble understanding how to calculate specific charge. I know that it is charge/mass.

But what charge are they referring to? For instance an atom may be charged + or - and may not be charged at all. In that instance are we referring to the extra charge that exceeds the positive or negative charge?

What is the specific charge of a U-238?

Please show me some work outs. especially showing for charged and uncharged atoms. (assuming uncharged contains extra protons or electrons)

...or is it neutral atoms do not apply.

Thank you.
 
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Do all nuclei have equal number of protons and electrons therefore are not charged at all. I mean when they initially they write the atom symbol showing the atomic number and nucleon number without showing the number of electrons.
 
"Charge" is the charge of the whole object you are considering. Neutral objects have a specific charge of zero. If you ionize the U-238, it gets a non-zero specific charge.
 

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