| Dubnium [Db] (CAS-ID: 53850-35-4) | |
| An: 105 N: 268 Am: [ 262 ] | |
| Group No: 5 | |
| Block: d-block Period: 7 | |
| State: resumably a solid at 298 K | |
| Colour: unknown, but probably metallic and silvery white or grey in appearance Classification: Metallic | |
| Boiling Point: unknown (?) | |
| Melting Point: unknown (?) | |
| Density: unknown | |
| Availability: Dubnium is a synthetic element that is not present in the environment at all. It has no uses. | |
 Discovery Information |
| Who: The Joint Institute for Nuclear Research |
| When: 1970 |
| Where: Dubna, USSR |
| Name Origin |
| After the city of Dubna, Russia, home to the Joint Institute for Nuclear Research |
| Sources |
| First synthisized by bombarding Am243 with Ne22. |
| Uses |
| None. |
| Notes |
| In August of 1997 the International Union of Pure and Applied Chemistry announced the official naming of this element as Dubnium, it has previously been known as Joliotium, Hahnium and Unnilpentium (from the latin for "one zero five"). |