下列有关元素与原子的叙述中正确的是 A.元素的种类取决于该元素的相对原子质量b.同种元素的原子结构和质量完全相同c.不同种元素的根本区别是 Template




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tomski下列有关元素与原子的叙述中正确的是 a.元素的种类取决于该元素的相对原子质量b.同种元素的原子结构和质量完全相同c.不同种元素的根本区别是 coloring