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如何比较镁和铝的金属性强弱

2025-04-06 08:24:29

推荐回答（2个）

回答1：

用元素周期律来判断
同一周期越往左金属性越强,Al和Mg都是第三周期,但Mg在Al左边,因此Mg>Al.
二楼通过溶液中的置换反应比较的是金属活动性不是金属性,一楼通过最外层电子数比较但必须讲明是同一周期的前提.

回答2：

可以看与稀盐酸的反应剧烈程度，哪个剧烈哪个就金属性强

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