... km V = r = 1,35 .10 -1 nm = 1,35 .10 -8 cmV = = 10, 30. 10 -24 (cm3)Khi lng ca mt nguyờn t km l65.1,66 .10 -24 = 107 ,9 .10 -24 (g)Vy khi lng riờng ca nguyờn t km l =10, 48 (g/cm3)Thc ... 26.1,6726 .10 -27 (kg) = 43,4876 .10 -27 (kg).mn = 30.1,6748 .10 -27 (kg) = 50,2440 .10 -27 (kg).me = 26.9 ,109 4 .10 -31 (kg) = 23,6844 .10 -30 (kg).- KLNT tuyt i ca st l: -27-2793,7553 .10 ... 56,477381,66005 .10 (vC) 1 mol Fe = 56,4773g.- S electron cú trong 1 kg electron l: 31-311 = 0 ,109 777 .10 9 ,109 4 .10 (ht).-31Fe230 ,109 777 .10 n = = 70135,9 mol.26.6,02 .10 - mFe = 70135,9...