Electron number density of the earth

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SUMMARY

The approximate electron number density of the Earth, denoted as n_{e}, is crucial for physicists studying the MSW effect on weakly-interacting particles. According to the Particle Data Group (PDG) Review, there is approximately 1 mole (6 x 1023 electrons) per 2.1 grams of matter in the Earth, equating to 1 electron per proton. Given the Earth's mass of about 6 x 1024 kilograms, this information is essential for accurate calculations in particle physics.

PREREQUISITES
  • Understanding of electron number density in physics
  • Familiarity with the MSW effect in particle physics
  • Basic knowledge of the Particle Data Group (PDG) Review
  • Concept of moles and atomic mass in chemistry
NEXT STEPS
  • Research the MSW effect and its implications in neutrino physics
  • Explore the Particle Data Group (PDG) Review for additional constants
  • Study the relationship between mass and electron density in different materials
  • Investigate the role of electron number density in astrophysics
USEFUL FOR

Physicists, researchers in particle physics, and students studying the interactions of weakly-interacting particles will benefit from this discussion.

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I'm trying to find the approximate electron number density of the Earth - what physicists call n_{e} - but can't actually get the value anywhere. Does anyone know what the value of this constant is?
 
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you want to know how many electrons there are on the earth?
seems a little obscure...
 
No, it's a quantity used by physicists to calculate the MSW effect on weakly-interacting particles going through the earth. Anyways, it doesn't matter, I found it in the PDG Review.
 
There is about 1 mole (6 x 10^23 electrons) per 2.1 grams of matter in the Earth. This is equivalent to 1 electron per proton. The Earth's mass is about 6 x 10^24 kilograms.
 

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