Curium
96
Cm
Groep
n.v.t.
Periode
7
Blok
f
Protonen
Elektronen
Neutronen
96
96
151
Algemene Eigenschappen
Atoomnummer
96
Atomair gewicht
[247]
Massa Getal
247
Categorie
Actiniden
Kleur
Zilver
Radioactief
Ja
Curium is named after Madame Curie and her husband Pierre Curie
Kristalstructuur
Eenvoudige Hexagonaal
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.
Eletronen per schil
2, 8, 18, 32, 25, 9, 2
Electronconfiguratie
[Rn] 5f7 6d1 7s2
Curium accumulates in the bones, lungs and liver, where it promotes cancer
Fysieke Eigenschappen
Fase
Vast
Dichtheid
13,51 g/cm3
Smeltpunt
1613,15 K | 1340 °C | 2444 °F
Kookpunt
3383,15 K | 3110 °C | 5630 °F
Fusiewarmte
n.v.t.
Verdampingswarmte
n.v.t.
Specifieke Warmtecapaciteit
-
Overvloedig aanwezig in de aardkorst
n.v.t.
Overvloedig aanwezig in het universum
n.v.t.
CAS-nummer
7440-51-9
PubChem CID nummer
n.v.t.
Atoomeigenschappen
Atoomstraal
174 pm
Covalentiestraal
169 pm
Electronegativiteit
1,3 (Pauling schaal)
Ionisatiepotentiaal
5,9915 eV
Atoomvolume
18,28 cm3/mol
Thermische geleiding
0,1 W/cm·K
Oxidatietoestanden
3, 4
Toepassingen
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
Isotopen
Stabiele isotopen
-Instabiele isotopen
233Cm, 234Cm, 235Cm, 236Cm, 237Cm, 238Cm, 239Cm, 240Cm, 241Cm, 242Cm, 243Cm, 244Cm, 245Cm, 246Cm, 247Cm, 248Cm, 249Cm, 250Cm, 251Cm, 252Cm