The position of both an electron and a helium atom is known within 1.0nm and the momentum of the electron is known within 50 × 10^-26 kgms^−1. The minimum uncertainty in the measurement of the momentum of the helium atom is. The orbital angular momentum of a p-electron is given as : 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