The isotopic abundance and atomic weight of natural uranium  

作　　者：Liu, YF Fu, SC 

出　　处：《Chinese Science Bulletin》1997年第10期814-817,共4页

摘　　要：THERE are three radioactive nuclides of uranium in nature,²³⁴U,²³⁵U and ²³⁸U.The isotopicabundance and atomic weight of unanium was reported before.In 1983,the International U-nion of Pure and Applied Chemistry（IUPAC）gave a review of the published data.The resultsof the review showed the abundance of uraniums,²³⁴U:0.000 055（5）;²³⁵U:0.007 200（12）;²³⁸U:0.992 745（60）,the atomic weight of uranium,A,（U）=238.028 9（1）.

关 键 词：ISOTOPIC ABUNDANCE of URANIUM ATOMIC WEIGHT of URANIUM MASS spectrometric measurement. 

分 类 号：O571[理学—粒子物理与原子核物理]