时间:2019-05-21 05:39:38
1、填空题 放射性原子核A经一系列α和β衰变变为原子核B．若B核内质子数比A核少8，中子数比A核少16．则发生α衰变的次数为_______次, 发生β衰变的次数为_________次。
2、选择题 原子核style="shiti/data:image/png;base64,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" alt="">具有天然放射性，它经过若干次α衰变和β衰变后会变成新的原子核．下列原子核中，有三种是style="shiti/data:image/png;base64,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" alt="">衰变过程中可以产生的，它们是（ ）
A.style="shiti/data:image/png;base64,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" alt="">
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C.style="shiti/data:image/png;base64,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" alt="">
D.style="shiti/data:image/png;base64,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" alt="">
E.style="shiti/data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACoAAAAkCAIAAABwqz98AAABvklEQVRYhe2XsZHEIAxF1QVlEFCEqyChBxdBolpI6MQJHdCFLwCEhO252cO+vZlbZYuNH5K+JBb2txr8FXz0DgAAwPnIXshOKwAAUHHLh+31qdzyOj4FLJ9IAQEAQyrraJdCRWsATOLkLaoJsMCHEGgJrTEW66kCEZNhxzr8nMNzi941PLfstCJe9M5YawAA4OzlCTxac+ZWMj342WllLaaWgh+HYcTnLS5n3kTvZOS7ElmyZvF5teuJvre4CokJ/EWyXseTzqWlRTu5OupgtvB2Gd7o13aO7PRCKafYRO9aHfZIUOe47hMXeKwqbluru0msyiqnLUwT/axXGrr0/g57P17J+FWjvAzrj3g/SJhHYnj0CD4FPJQiyUg9jpf1Ujpj7Zi/4f0+lnFvDA/ii76KuOQs6AWstebx7/iyocywdPjo5GS7MsL3+c1HSArIutsNA/4cz9WRAlJ18nGC1kzebS7xpWMUEp/3LIV83t+P77kfItxyfz97l8qvLXPoi3Ss2yO/y+DruGWehcLWJ4V0N57LTTapLreZW803eO5c9I4rv2U9O62eU379g3FUGV0rHm0777EP/oP/n/gvBHnnxECdQTUAAAAASUVORK5CYII=" alt="">
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3、选择题 原子核A经过一次β衰变和一次α衰变的过程如下：?A
4、填空题 
Co发生一次β衰变后变为Ni，其衰变方程为___________，在该衰变过程中还发出频率为υ1、υ2的两个光子，其总能量为___________。
5、填空题 带电的验电器在放射线的照射下电荷会很快消失，这是因为射线具有一定的______作用的缘故．放射线对人体有伤害，因此在作示踪原子时，应选择半衰期较______（选填“长”或“短”）的放射性元素．