Fermiy
100
Fm
Guruh
Nomaʼlum
Davr
7
Blok
f
Protonlar
Elektronlar
Neytronlar
100
100
157
Umumiy xususiyatlar
Atom raqami
100
Atom massasi
[257]
Mass raqami
257
Turkum
Aktinoidlar
Ranggi
Nomaʼlum
Radioaktivlik
Ha
Named after Nobel laureate Enrico Fermi, one of the pioneers of nuclear physics
Kristall tuzilma
Nomaʼlum
Tarix
Fermium was discovered as a component of the debris of the first hydrogen bomb explosion in 1952.
It was identified by Albert Ghiorso and co-workers at the University of California, Berkeley in collaboration with the Argonne and Los Alamos National Laboratories, in the fallout from the Ivy Mike nuclear test.
The new element was produced by the nuclear fission of 17 neutrons with uranium-238.
It was identified by Albert Ghiorso and co-workers at the University of California, Berkeley in collaboration with the Argonne and Los Alamos National Laboratories, in the fallout from the Ivy Mike nuclear test.
The new element was produced by the nuclear fission of 17 neutrons with uranium-238.
Qobiqdagi elektronlar soni
2, 8, 18, 32, 30, 8, 2
Elektron konfiguratsiyasi
[Rn] 5f12 7s2
Sixteen isotopes of fermium are known to exist
Jismoniy xususiyatlar
Faza
Qattiq modda
Zichlik
- g/cm3
Erish harorati
1800,15 K | 1527 °C | 2780,6 °F
Qaynash harorati
-
Eritish issiqligi
Nomaʼlum kJ/mol
Bugʻlanish issiqligi
Nomaʼlum kJ/mol
Solishtirma issiqlik sigʻimi
- J/g·K
Yer po‘stidagi miqdori
Nomaʼlum
Olamdagi miqdori
Nomaʼlum
Rasm manbalari: Wikimedia Commons (National Nuclear Security Administration)
Fermium was first observed in the fallout from the Ivy Mike nuclear test
CAS raqami
7440-72-4
PubChem CID raqami
Nomaʼlum
Atom xususiyatlari
Atom radiusi
-
Kovalentlik radiusi
-
Elektrmanfiylik
1,3 (Poling boʻyicha)
Ionlashish potensiali
6,5 eV
Molyar hajm
29,1 cm3/mol
Issiqlik oʻtkazuvchanlik
0,1 W/cm·K
Oksidlanish darajasi
2, 3
Qo‘llanilish sohalari
Fermium is used for scientific research purposes only.
Fermium is harmful due to its radioactivity
Izotoplar
Barqaror izotoplar
-Beqaror izotoplar
241Fm, 242Fm, 243Fm, 244Fm, 245Fm, 246Fm, 247Fm, 248Fm, 249Fm, 250Fm, 251Fm, 252Fm, 253Fm, 254Fm, 255Fm, 256Fm, 257Fm, 258Fm, 259Fm, 260Fm