Question #b14c0

1 Answer
Truong-Son N.
Oct 1, 2017

Mass, charge, and location in the atom.

All of the extensive quantities below are normalized to 1 for the electron and the proton is relative to the electron.

" "" "" "" "ul("Mass (Rel)"" "" ""Charge"" "" ""Location"" ")

"Electron"" "" "1" "" "" "" "-1" "" ""Around nucleus"

"Proton"" "~~1836" "" "" "" "1" "" "" ""In nucleus"

We assume also that the proton is fixed (the Born-Oppenheimer approximation) relative to the electron. It is a good approximation, but it is still an approximation and not strictly true.

In the absence of this approximation, for example, "CH"_4 would still have a very, very slight dipole moment. So small that we don't care, but...

Related questions
Impact of this question
122 views around the world
You can reuse this answer
Creative Commons License