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为什么人们称卢瑟福为原子he之父?

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为什么人们称卢瑟福为原子he之父?

英国wu理学家卢瑟福gen据α粒子的散she1实验结果,于1911年发现了原子he的存在,并据此提chu了类似太yang系结构的原子模型,原子中央是带有正电荷的原子he,所有带负电荷的电子就像行星绕着太yang一样围着原子he旋转。这一理论模型极大地改变了科学界对原子结构的认识,为后来shen入探讨原子结构奠定了基础。1919年,卢瑟福通过放she1xing元素钋的α粒子轰击氮原子,获得了氧的同位素,第一次实现了元素的人工转变。1920年,他预言了中子的存在,认为原子he内bu存在某些不带电的粒子,这些粒子很容易打入原子he内,和原子he结合或者完成蜕变,这zhong粒子就是中子。人们用中子作"炮弹"轰击原子he,引发原子he的链式反应,并释放chuju大的原子能。现代原子研究从此进入了一个全新时代,而卢瑟福也理所当然地被人们称为"原子he之父"了。

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