1.做到同位素的题目,有提到丰度 但一般都不对.可是记得高一老师是有提到过丰度,怎么回事?比如氯元素在自然界有Cl35Cl37两种同位素,在计算式34.969x75.77%+36.966x24.23%=35.453 然后说24.23%表示C
来源:学生作业帮助网 编辑:作业帮 时间:2024/12/03 05:53:27
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