商道 来源:互联网 时间:2023-05-12 20:04:47
(资料图片)
1、铝是一种轻金属元素,化学符号为Al,原子序数13,相对原子量27。
2、元素原子核中的中子数=原子量-原子序数(质子数)铝的中子数=27-13=14。
3、不管是铝元素,还是铝离子,中子数不变。
4、因为一种元素由中性原子转变为离子,只是其核外电子数的变化,原子核没有变化。
5、所以,Al+3的中子数也是14。
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