dubnium中文什么意思
英文释义
名词- a transuranic element
同义词：Db, hahnium, element 105, atomic number 105
百科释义
Dubnium is a chemical element with the symbol Db and atomic number 105, named after the town of Dubna in Russia, where it was first produced. It is a synthetic element (an element that can be created in a laboratory but is not found in nature) and radioactive; the most stable known isotope, dubnium-268, has a half-life of approximately 28 hours.
详细百科解释
