Dubnium

Dubnium: the essentials

Brief description: dubnium is a synthetic element that is not present in the environment at all. It has no uses.

Isolation

Isolation: only very small amounts of of element 105, dubnium, have ever been made. The first samples were made through nuclear reactions involving fusion of an isotope of californium, ²⁴⁹Cf, with one of nitrogen, ¹⁴N. A second route to the same isotope via berkelium is also known

¹⁵N + ²⁴⁹Cf → ²⁶¹₁₀₅Db + 4 ¹n

¹⁶N + ²⁴⁹Bk → ²⁶¹₁₀₅Db + 4 ¹n

Isolation of an observable quantity of dubnium has never been achieved.

WebElements Shop

WebElements now has a WebElements shop at which you can buy periodic table posters, mugs, T-shirts, games, molecular models, and more.