如图是元素�期表的一格下列有关叙述不正确的是 A.锰元素的原子序数为25b.锰元素的相对原子质量为55c.锰元素的原子核外电子数为25d Template




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tomski如图是元素�期表的一格下列有关叙述不正确的是 a.锰元素的原子序数为25b.锰元素的相对原子质量为55c.锰元素的原子核外电子数为25d coloring