Dubnium topic

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Dubnium (pronounced /ˈduːbniəm/) is a chemical element in the periodic table that has the symbol Db and atomic number 105. This is a radioactive synthetic element whose most stable isotope is Db with a half life of 28 hours. This is the longest lived transactinide isotope and is a reflection of the stability of the Z=108 and N=162 closed shells and the effect of odd particles in nuclear decay. Chemistry experiments have provided sufficient evidence to confidently place dubnium in group 5 of the... full article at wikipedia

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Chemistry

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53850-35-4

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The original description for this topic was automatically generated from the Wikipedia article "Dubnium" licensed under the GNU Free Documentation License .