Fermium
Fermium (symbol Fm) is a chemical element. It has an atomic number of 100, which makes it at position 100 at the periodic table. Fermium cannot be found in natu…
Fermium (symbol Fm) is a chemical element. It has an atomic number of 100, which makes it at position 100 at the periodic table. Fermium cannot be found in nature; it has to be made. Scientists can create it by combining plutonium with neutrons at very high speeds and temperatures. It is named after Enrico Fermi.
History
Albert Ghiorso and other scientists at the University of California, Berkeley first discovered fermium. They found the element in the fallout from the explosion of the first successful hydrogen bomb test. This test was on November 1, 1952. In the fallout, scientists also discovered another new element, Einsteinium. Because of the Cold War, the US military did not allow the scientists to publish their results in a scientific journal. However, they conducted other studies and published their research in 1954. The studies of nuclear fallout were declassified and published in 1955.
A group in the Nobel Institute for Physics in Stockholm also discovered isotopes of this element before the research of the Berkeley scientists was published. However, most agree that the Berkeley scientists were the first to discover fermium.
| H | He | ||||||||||||||||||||||||||||||||||||||||
| Li | Be | B | C | N | O | F | Ne | ||||||||||||||||||||||||||||||||||
| Na | Mg | Al | Si | P | S | Cl | Ar | ||||||||||||||||||||||||||||||||||
| K | Ca | Sc | Ti | V | Cr | Mn | Fe | Co | Ni | Cu | Zn | Ga | Ge | As | Se | Br | Kr | ||||||||||||||||||||||||
| Rb | Sr | Y | Zr | Nb | Mo | Tc | Ru | Rh | Pd | Ag | Cd | In | Sn | Sb | Te | I | Xe | ||||||||||||||||||||||||
| Cs | Ba | La | Ce | Pr | Nd | Pm | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | Hf | Ta | W | Re | Os | Ir | Pt | Au | Hg | Tl | Pb | Bi | Po | At | Rn | ||||||||||
| Fr | Ra | Ac | Th | Pa | U | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No | Lr | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og | ||||||||||
| |||||||||||||||||||||||||||||||||||||||||
Content Disclaimer
Informasi ini disarikan dari Wikipedia dan disajikan kembali untuk tujuan edukasi. Konten tersedia di bawah lisensi CC BY-SA 3.0. Kami tidak bertanggung jawab atas ketidakakuratan data yang bersumber dari kontribusi publik tersebut.
- The information displayed on this website is sourced in part or in whole from Wikipedia and has been adapted for the purpose of restating it. We strive to provide accurate and relevant information, however:
- There is no guarantee of absolute accuracy. Wikipedia is an open, collaborative project that can be edited by anyone, so information is subject to change.
- It is not intended to constitute professional advice. The content displayed is for informational and educational purposes only. For important decisions (e.g., medical, legal, or financial), please consult a professional.
- Content copyright. Wikipedia is licensed under the Creative Commons Attribution-ShareAlike License (CC BY-SA). This means that content may be reused with appropriate attribution and shared under a similar license.
- Responsible use. Any risk arising from the use of information from this website is entirely the responsibility of the user.