Curium
96
Cm
Gruppe
n/a
Periode
7
Blokk
f
Protons
Electrons
Neutrons
96
96
151
Generelle eigenskapar
Atomnummer
96
Atommasse
[247]
Mass Number
247
Kategori
Aktinid
Farge
Silver
Radioactive
Ja
Curium is named after Madame Curie and her husband Pierre Curie
Krystallstruktur
Simple Hexagonal
Historie
Curium was discovered by Glenn T. Seaborg, Ralph A. James and Albert Ghiorso in 1944 at the University of California, Berkeley.
It was produced by bombarding plutonium with alpha particles during the Manhattan Project.
Curium metal was produced only in 1951 by reduction of curium fluoride with barium.
It was produced by bombarding plutonium with alpha particles during the Manhattan Project.
Curium metal was produced only in 1951 by reduction of curium fluoride with barium.
Elektron per energinivå
2, 8, 18, 32, 25, 9, 2
Elektronkonfigurasjon
[Rn] 5f7 6d1 7s2
Curium accumulates in the bones, lungs and liver, where it promotes cancer
Fysiske eigenskapar
Tilstandsform
Fast stoff
Tettleik
13,51 g/cm3
Smeltepunkt
1613,15 K | 1340 °C | 2444 °F
Kokepunkt
3383,15 K | 3110 °C | 5630 °F
Smeltevarme
n/a
Fordampingsvarme
n/a
Spesifikk varmekapasitet
-
Abundance in Earth's crust
n/a
Abundance in Universe
n/a
CAS Number
7440-51-9
PubChem CID Number
n/a
Atom eigenskapar
Atomradius
174 pm
Kovalent radius
169 pm
Elektronegativitet
1,3 (Paulings skala)
Ioniseringspotensial
5,9915 eV
Molart volum
18,28 cm3/mol
Termisk konduktivitet
0,1 W/cm·K
Oksidasjonstrinn
3, 4
Applications
Curium is mainly used for scientific research purposes.
Curium is a common starting material for the production of higher transuranic elements and transactinides.
The most practical application of 244Cm is as α-particle source in the alpha particle X-ray spectrometers (APXS).
Curium is a common starting material for the production of higher transuranic elements and transactinides.
The most practical application of 244Cm is as α-particle source in the alpha particle X-ray spectrometers (APXS).
Curium is harmful due to its radioactivity
Isotopes
Stable Isotopes
-Unstable Isotopes
233Cm, 234Cm, 235Cm, 236Cm, 237Cm, 238Cm, 239Cm, 240Cm, 241Cm, 242Cm, 243Cm, 244Cm, 245Cm, 246Cm, 247Cm, 248Cm, 249Cm, 250Cm, 251Cm, 252Cm