What Is the Mass Defect of a Hydrogen Atom?

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SUMMARY

The mass defect of a hydrogen atom is determined by the binding energy of its constituent particles, specifically the proton and the electron. The binding energy is quantified as 13.7 eV, which, when divided by the square of the speed of light (c^2), provides the mass difference between the hydrogen atom and its free particles. This calculation highlights the energy-mass equivalence principle as described by Einstein's theory.

PREREQUISITES
  • Understanding of binding energy in atomic physics
  • Familiarity with Einstein's mass-energy equivalence (E=mc²)
  • Basic knowledge of atomic structure, specifically protons and electrons
  • Concept of electron volts (eV) as a unit of energy
NEXT STEPS
  • Research the implications of binding energy in nuclear physics
  • Learn about the mass defect in other elements beyond hydrogen
  • Explore the relationship between binding energy and nuclear stability
  • Investigate the role of quarks in the mass of protons and neutrons
USEFUL FOR

Students and professionals in physics, particularly those focusing on atomic and nuclear physics, as well as educators teaching concepts related to binding energy and mass defect.

Danyon
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What's the mass difference between a hydrogen atom and it's constituent particles when they are free, I'm talking about the proton and the electron, not the quarks that make up the proton.
 
Last edited:
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The binding energy (13.7 eV) divided by c^2.
 
my2cts said:
The binding energy (13.7 eV) divided by c^2.
Thanks
 

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