The measurement of the electron position is associated with an uncertainty in momentum, which is equal to 1×10^−18g cms^−1. The uncertainty in electron velocity is (mass of an electron is 9×10^−28g) The measurement of the electron position is associated with an uncertainty in momentum which is equal to 1×10^−18g cms^−1. The uncertainty in electron velocity is (mass of an electron is 9×10^−28g) November 12, 2020 Category: Chapter 2 - Atomic Structure , Chemistry , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Facebook Messenger WhatsApp Share this:TwitterFacebook Related