研究X射线获得诺贝尔奖的人物?
劳伦斯布拉格,1890年生,1915年诺贝尔物理学奖,25岁。。。足够硬了。
1909年随父去英国,1912年,他开始研究劳厄发现的X射线衍射现象,并于11月在《剑桥哲学学会学...
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扫描电子显微某满镜-X射线能谱仪可用于毒物分析。( )
A
阅读下来自列材料,并回答相关问题规活置下宽房况达统们渐。 万卡特拉曼·莱马克里斯南、托马斯·施泰茨和歌明皮买轮鱼负告跳阿达·尤纳斯三位科学家因“对核糖体的结构和功能的研究”而获得2009年诺贝尔化学奖。 3名获奖者通过**360问答的研究和科学实验,使用了X射线结晶学的方法得还班到了核糖体的三维结构,绘制出3D模型。在原子水平上分析了由几十万个原因大剂东至犯子构成的
①实践是认识的来源。三位科学家通过科学实验,获得了核糖体的三维结构,绘制出3D模型。②实践是认识发展的动力,实践是检验认识的真理性的唯一标准。针对病原微生物对抗生素的‘抗性’新问...
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X射线衍射分析法进行物相分析时常用照相法和衍射仪代字条祖今其音快听多法获得样品衍射花样,各自的原
X射线衍射分析法进行别展而物相分析时,常用照相法和衍射仪法获得样品衍射花样。它们都要遵循衍射原理,衍射原理中最重要的就是布拉格公式或布拉格方程。厄瓦尔德反射球,可以用图解的方式解...
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>在X射线荧光分析中把X射线光子能量转换成电信号的装置是( )。
B
在X射线荧光分析中把X射线光子能量转换成电信号的装置是()。
D
旅客声明不能用X射线机检查的物来自品是开箱(包)检查的重住深若二家点物品。( ) 此题为判断题(对,错)。请帮忙给出正确**和分析...
正确**:√
【题文】下约抗训再环鸡是镇或另老列说法中正确的是 。来自A.粒子散射实验证明360问答了原子核还可以再分B二缩看背加弦.天然放射现象的发现揭示了原子各块直病华粉轻定的核式结构C.分别用X射线和绿光照射同一金属表面都能发生光电效针案侵溶应,但用X射线照射时光电子的最大初动能较大D.基态氢原子吸收一个光子跃迁到激发态后,可能发射多种频率的光子
试题**:【**】CD试题解析:【解析】试题分析:放射性架长元素的发现证明了和你一原子核还可以再分,候境合材营选项A错误;根据粒子散射实验,卢瑟福揭示了原子的核式结构夫护湖及真述...
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【题文】下列说法中正确的是 。A.粒子散射实验证明了原古子核还可以再分B.天然来自放射现象的发现揭示了原子360问答的核式结构C.分别用X射线和绿光照射同一金属表面都能发生光电效应,但用X射线照射时光电子的最大初动能较大D.基态氢原子吸收一个光子跃迁到激发态后,可能发射多种频率的光子
试题**:【**】CD试题解析:【解析】试题分析:放射性元素的发现证明了原子核还可以再分,选项A错误;根据粒十同脱翻消国三师子散射实验,卢瑟福揭示了原子断增均波觉操架门的核式结构...
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【题文】下列说法中正确的是 。否获马钱尼粉笔结A.粒子散射实验证明了原子核还可以再分B.天然放射现象的来自发现揭示了原子的核式结构C.分别用X射线和绿光照射同一金属表面都能发生光电效应,但用X射线照射时光电子的最大初动能较大D.基态氢意磁阳她损达否烧刘求错原子吸收一个光子跃迁到激发态后,可能发射多种频率的光子
试题**:【**】CD试题解析:【解析】试题分析:放射性元素的发现证明了原子核还可以再分,选项A调血识切前约主错误;根据粒子散射实验,卢瑟福揭示了原子的核式结构,选项B错误;分别...
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20来自05年被***定为“世界物理年”,以表彰爱因斯坦对科学的贡献.爱因斯坦对物理学的贡献有A.创立“相对论”B.发现“X射线”C.提出“光子说”D.建立“原子核式模型”
试题答案:AC试题解析:分析:爱因斯坦是近代伟大的物理学讲弱家,学生要了解其重要贡献.解答:A、爱因斯坦重要的360问答贡献有创立“相对论”,提出“光子说”,境委的随建立光电效应...
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21世纪化学的发展趋势是什么?
21世纪化学的发展趋势一)提高灵敏度这是各种分来自析方法长期以来所价皮构追求的目标。当代许多新的技术引360问答入分析化学,都是与提高品的分析方法的灵敏度有关地各似局,如激光技术...
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6.前**的切尔诺贝利核电站验均发生核事故后,当地居民中来自白血病患者增多,儿童畸形增多,其原因是( )
D矛做却解析:分析目前认为,致癌因子大致分为三类:物理致癌因子,需批到木化学致癌因子和病毒致癌因子.物理致癌因子:主要指从天室古艺审死它承丰同辐射,如紫外线、丝团胜发想句X射线等...
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