作业帮什么是反物质?它真的存在吗?
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/28 01:44:11
什么是反物质?它真的存在吗?
什么是反物质?它真的存在吗?
什么是反物质?它真的存在吗?
任何一种基本粒子都有自己的反粒子.它们和正粒子的电性相反但电荷相等,自旋方向相反,质量相等.由反粒子组成的物质就是反物质.正反物质相遇的时候会发生比聚变和裂变要剧烈的多的核反应,叫做湮灭反应.湮灭反应时,物质全部转化为能量.所以反物质蕴涵着大量的能量.但很难控制.目前在宇宙空间中发现了少量的反物质基本粒子,在实验室里也能制造出反粒子.我记得正电子现在已经可以在医学上应用了.
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依相对论反物质是绝对的存在