Fe3C is also known as cohenite, particularly when found mixed with nickel and cobalt carbides in meteorites. This form, a hard, shiny silver mineral, was first described by E. Weinschenk[?] in 1889.
... is the charge on an electron.
eZ is the charge effective at the electron due to the nucleus and its surrounding electrons.
The quantity Z/rē correlates well with ...
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