Fermium
100
Fm
Kumpulan
Tiada
Kala
7
Blok
f
Proton
Elektron
Neutron
100
100
157
Ciri-Ciri Am
Nombor atom
100
Berat atom
[257]
Nombor jisim
257
Kategori
Aktinid
Warna
Tiada
Radioaktif
Ya
Named after Nobel laureate Enrico Fermi, one of the pioneers of nuclear physics
Struktur hablur
Tiada
Sejarah
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.
Bilangan elektron per petala
2, 8, 18, 32, 30, 8, 2
Konfigurasi elektron
[Rn] 5f12 7s2
Sixteen isotopes of fermium are known to exist
Ciri-Ciri Fizikal
Fasa
Pepejal
Ketumpatan
-
Takat lebur
1800.15 K | 1527 °C | 2780.6 °F
Takat didih
-
Haba pelakuran
Tiada
Haba pengewapan
Tiada
Muatan haba molar
-
Banyak pada kerak bumi
Tiada
Banyak pada alam semesta
Tiada
Kredit imej: Wikimedia Commons (National Nuclear Security Administration)
Fermium was first observed in the fallout from the Ivy Mike nuclear test
Nombor CAS
7440-72-4
Nombor PubChem CID
Tiada
Ciri-Ciri Atom
Jejari atom
-
Jejari kovalen
-
Keelektronegatifan
1.3 (Skala Pauling)
Kebolehan mengion
6.5 eV
Isipadu atom
29.1 cm3/mol
Daya pengaliran terma
0.1 W/cm·K
Keadaan pengoksidaan
2, 3
Aplikasi
Fermium is used for scientific research purposes only.
Fermium is harmful due to its radioactivity
Isotop
Isotop stabil
-Isotop tidak stabil
241Fm, 242Fm, 243Fm, 244Fm, 245Fm, 246Fm, 247Fm, 248Fm, 249Fm, 250Fm, 251Fm, 252Fm, 253Fm, 254Fm, 255Fm, 256Fm, 257Fm, 258Fm, 259Fm, 260Fm