Difference between revisions of "Beryllium"
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There is only one stable [[isotope]] of beryllium, <sup>9</sup>Be. A second isotope, <sup>10</sup>Be, is commonly produced in Earth's atmosphere and accumulates at the surface of the soil. <sup>10</sup>Be currently has a half-life of 1.36 million years and decays through [[proton]] capture to form a [[boron]] isotope, <sup>10sup>B. | There is only one stable [[isotope]] of beryllium, <sup>9</sup>Be. A second isotope, <sup>10</sup>Be, is commonly produced in Earth's atmosphere and accumulates at the surface of the soil. <sup>10</sup>Be currently has a half-life of 1.36 million years and decays through [[proton]] capture to form a [[boron]] isotope, <sup>10sup>B. | ||
| + | ==Occurrence in Nature== | ||
| + | Beryllium is very scarce in nature; it has an estimated occurrence of one part per billion (ppb) throughout the universe. It does not occur naturally ina pure form, only in a compound with other elements. Beryllium is a component in many gemstones. | ||
[[Category:Metals]][[Category:Elements]] | [[Category:Metals]][[Category:Elements]] | ||
Revision as of 23:25, September 23, 2011
| Beryllium | |
|---|---|
| Properties | |
| Atomic symbol | Be |
| Atomic number | 4 |
| Classification | Standard Metal |
| Atomic mass | 9.01 amu |
| Other Information | |
| Date of discovery | 1798 |
| Name of discoverer | Fredrich Wohler |
| Name origin | Derived from the mineral Beryl. |
| Uses | Spacecrafts, aircrafts, and missiles. |
| Obtained from | Beryl or Chrysoberyl. |
Beryllium is the chemical element with atomic number 4. Its symbol is Be.
Chemical Properties
Beryllium melts at 1560 Kelvin (K) and boils at 2742K. In its solid elemental form it is metallic.
Isotopes
There is only one stable isotope of beryllium, 9Be. A second isotope, 10Be, is commonly produced in Earth's atmosphere and accumulates at the surface of the soil. 10Be currently has a half-life of 1.36 million years and decays through proton capture to form a boron isotope, 10sup>B.
Occurrence in Nature
Beryllium is very scarce in nature; it has an estimated occurrence of one part per billion (ppb) throughout the universe. It does not occur naturally ina pure form, only in a compound with other elements. Beryllium is a component in many gemstones.