(i) Calculate the total number of electrons present in 1 mole of methane . (ii) Find (a) the total number and (b) the total mass of neutrons in 7 mg of .14C. (Assume that mass of a neutron =1.675×10^−27g) identify the pairs of electrons present in degenerate orbitals : Out of the following pairs of electrons November 12, 2020 Category: Chapter 2 - Atomic Structure , Chemistry , NCERT Exemplar Class 11 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related