... x + * (100 x) Ta cú: =1,008 100 x=0,8 S nguyờn t ca ng v 1H2 = n.N0 = m/M.N0 = 2.1*6,022 *102 3*0,8/18 *100 = 5,35 *102 0 nguyờn t 10 Kin thc tham kho S nguyờn t = s mol x N N= 6,023 x 102 3 L s ... sp xp theo chiu Z tng dn B i t trỏi qua phi, cỏc nguyờn t c sp xp theo chiu lng nguyờn t tng dn C Tt c u cú cựng s lp e D i t trỏi qua phi, cỏc nguyờn t c sp xp theo chiu tng dn Cõu 2: Theo qui ... v lm R l bỏn kớnh nguyờn t s mol x N mol nguyờn t Au cú 6,023 x 102 3 nguyờn t - HS lờn bng trỡnh by N= 6,023 x 102 3 ỏp ỏn 1,28 .108 cm L s Avogadro -GV: sa li v gii thớch ,nhn mnh nhng im quan...