中文:锑在一个子弹被分析由一个法医科学家帮助侦破案件。锑被发觉有下面成分百分比附近的的弥撒:^121所罗门群岛,57。21%^123,42。79%擦醋拉特值为的相对原子质量antimony。give你的答案4有效数字
英文:The antimony in a bullet was analysed
by a forensic scientist to help solve a
crime. The antimony was found to have
the following percentage composition
by mass:^121 Sb,57.21% ^123,42.79%
Caculate a value for the relative atomic
mass of the antimony.Give your answer
to 4 significant figures

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