Difference between revisions of "Rubidium"
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| − | {{Element | name=Rubidium | symbol=Rb | anumber=37 | amass=85.47 amu | state=solid | class=Alkali metal | cstructure=Body-Centered Cubic | color=Silver | date=1861 | discname= | + | {{Element | name=Rubidium | symbol=Rb | anumber=37 | amass=85.47 amu | state=solid | class=Alkali metal | cstructure=Body-Centered Cubic | color=Silver | date=1861 | discname=Bunsen, R.W. and Kirchoff, G. | origname=From the Latin ''Rubidius'', meaning "deep red" | uses=scientific research | obtained=lepidolite, pollucite, carnallite }} |
| − | '''Rubidium''' is an element | + | '''Rubidium''' is an [[element]] in the [[alkali metal]]s class of the [[periodic table]]. It is so chemically active that it is never found free (in elemental form) in nature, and can sometimes catch fire on mere exposure to [[air]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref> |
| − | It was discovered by Robert Bunsen and Gustav Kirchoff, using their newly invented spectroscope. It (along with [[cesium]]) was identified by a previously unseen red spectral line in the analysis of mineral water from a German spa. The name comes from that color. | + | It was discovered by Robert Bunsen and Gustav Kirchoff, using their newly invented spectroscope. It (along with [[cesium]]) was identified by a previously unseen red spectral line in the analysis of mineral water from a [[Germany|German]] spa. The name comes from that color. |
==References== | ==References== | ||
<references/> | <references/> | ||
Revision as of 02:29, November 6, 2007
| Rubidium | |
|---|---|
| Properties | |
| Atomic symbol | Rb |
| Atomic number | 37 |
| Classification | Alkali metal |
| Atomic mass | 85.47 amu |
| Other Information | |
| Date of discovery | 1861 |
| Name of discoverer | Bunsen, R.W. and Kirchoff, G. |
| Name origin | From the Latin Rubidius, meaning "deep red" |
| Uses | scientific research |
| Obtained from | lepidolite, pollucite, carnallite |
Rubidium is an element in the alkali metals class of the periodic table. It is so chemically active that it is never found free (in elemental form) in nature, and can sometimes catch fire on mere exposure to air.[1]
It was discovered by Robert Bunsen and Gustav Kirchoff, using their newly invented spectroscope. It (along with cesium) was identified by a previously unseen red spectral line in the analysis of mineral water from a German spa. The name comes from that color.
References
- ↑ Wile, Dr. Jay L. Exploring Creation With Physical Science. Apologia Educational Ministries, Inc. 1999, 2000