Physics
Senior High
請問放射性元素到底是Bi+Bi之後的元素還是Bi之後的元素還是Pb+Pb之後的元素？
因為兩個老師說的是不一樣的，想請問大家哪個是正確的。
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請問放射性元素到底是Bi+Bi之後的元素還是Bi之後的元素還是Pb+Pb之後的元素？
因為兩個老師說的是不一樣的，想請問大家哪個是正確的。
Users viewing this question
are also looking at these questions 😉
