Difference between revisions of "Dubnium"
Jump to navigation
Jump to search
| Line 1: | Line 1: | ||
{{Element | name=Dubnium | symbol=Db | anumber=105 | amass=262 amu | noe=105 | class=Transition metal | cstructure=Unknown | color=Unknown | date=1970 | discname=[[Albert Ghiorso]] | origname=After Dubna, Russia. | uses=Dubnium has no known uses.| obtained=Man-made. }} | {{Element | name=Dubnium | symbol=Db | anumber=105 | amass=262 amu | noe=105 | class=Transition metal | cstructure=Unknown | color=Unknown | date=1970 | discname=[[Albert Ghiorso]] | origname=After Dubna, Russia. | uses=Dubnium has no known uses.| obtained=Man-made. }} | ||
| + | '''Dubnium''' is an artificially produced radioactive element. The atomic weight of nine known isotopes range from 255 to 263; the longest-lived isotope, dubnium 268 has an half-life of 32 hours. Dubnium is very unstable and little is known about it. | ||
| + | |||
| + | |||
| + | ==References== | ||
| + | http://www.lenntech.com/periodic/elements/db.htm#ixzz0fXKrhPDT | ||
Revision as of 18:36, February 14, 2010
| Dubnium | |
|---|---|
| Properties | |
| Atomic symbol | Db |
| Atomic number | 105 |
| Classification | Transition metal |
| Atomic mass | 262 amu |
| Other Information | |
| Date of discovery | 1970 |
| Name of discoverer | Albert Ghiorso |
| Name origin | After Dubna, Russia. |
| Uses | Dubnium has no known uses. |
| Obtained from | Man-made. |
Dubnium is an artificially produced radioactive element. The atomic weight of nine known isotopes range from 255 to 263; the longest-lived isotope, dubnium 268 has an half-life of 32 hours. Dubnium is very unstable and little is known about it.
References
http://www.lenntech.com/periodic/elements/db.htm#ixzz0fXKrhPDT