رد: مساعدة ضروري بخصوص الكيمياء
بالله شوفو هده السوالين في شابتر2
1-suppose a hypothetical.elemant consist of four isotopes.calculate its atomic weight
mass:-
62.982
63.978
64.973
65.968
natural abundance:-
14.260%
31.660%
8.180%
45.900%
وهدا الترتيب ع التوالي........
2-the atomic weight of antimony is 121,76amu.there are two naturally occurring isotopes of antimony.121sb has an isotopic mass of 120.9038amu and has a natural abundance of 57,40%.what is the isotopic mass of the other isotope,123sb?ساعدوووووووووووووووووووني اللللللللللللللله يوفقكم
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