I thought the charge on an electron had been measured out to 10^-19? One of my professors posted the journal article from the NIST team that did so. Here's a r

I thought the charge on an electron had been measured out to 10^-19? One of my professors posted the journal article from the NIST team that did so. Here's a reference: https://physics.nist.gov/cgi-bin/cuu/Value?e https://physics.nist.gov/cgi-bin/cuu/Value?e