velocity of electron in 3rd shell of Li+2is (c=velocity of light) 1. 1/137 c 2.1/274 c 3.2/137c Share with your friends Share 28 Vartika Jain answered this Radius of orbit, rn = n2Z × 0.529 ×10-8 cmWhen n=3 and Z=3r3 =323×0.529 ×10-8 = 1.587 ×10-8 cmNow, v=nh2πmr= 3×6.624×10-272×3.14×9.108×10-28×1.587×10-8= 2.1911 ×108 cm/secAnd velocity of light,c= 3×1010 cm/secSo, in terms of c velocity of electron can be written as =2.1911×1083×1010=0.7303×10-2 c or0.7303100c=7303106c -142 View Full Answer
