Searching for new elements and chemistry of superheavy elements

(1)对之前两次观测到的第113^&278&113号元素的第三个原子进行了实验寻找。在这个项目期间，我们没有观察到原子。结果表明，原子的产生几率比我们在项目开始时预计的要小。(2)设计并建造了一台用于超重元素化学研究的新型装置。我们对同位素^&lt；278&gt；113的大孙体^&lt；278&gt；113的核光谱性质进行了研究。这一结果进一步证实了113号元素的同位素^&lt；278&gt；113的产生。

(1) We conducted the experiment searching for the third atom of the 113^<th> element^<278> 113 which we observed twice before. We did not observe the atom during the period of this project. It was shown that the production probability of the atom is smaller than we expected at the beginning of the project.(2) We designed and constructed a new device for chemistry study of superheavy elements. We commissioned the device resulting that the performance of the device achieves the designed one.(3) We conducted the experiment to study nuclear spectroscopic properties of^<266> Bh(Z=107) which is a great grand-daughter of the isotope^<278> 113, and was not well studied before. The result provided further confirmation of the production of the isotope^<278> 113 of element 113.