Re: Electrons in the universe

<madscientist5500@xxxxxxxxx> wrote in message
news:1139409785.296474.116940@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Thanks, again. Why is it not feasible to calculate the number of
electrons directly?

From what data? You need to start with something
that's already counted. We have numbers for mass
density for matter, and matter contains electrons
in proportion to the number of protons.

What are the properties of an electron that might
be used to find a method of counting them?

a) Mass: Electrons make up a negligible mass
compared to the protons and neutrons in matter.
There is no way to measure electron mass separately
from other mass across the universe.

b) Charge: The universe is overall neutral, matter
is overall neutral.

c) They are found in a 1 to 1 correspondence with
protons in matter. We know the proton numbers
by element.


.

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