Kirij
96
Cm
Skupina
n/a
Perioda
7
Blok
f
Protons
Electrons
Neutrons
96
96
151
General Properties
Vrstno število
96
Atomska teža
[247]
Mass Number
247
Kategorija
Aktinoidi
Barva
Silver
Radioactive
Da
Curium is named after Madame Curie and her husband Pierre Curie
Kristalna struktura
Heksagonalna
Zgodovina
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.
Electrons per shell
2, 8, 18, 32, 25, 9, 2
Razporeditev elektronov
[Rn] 5f7 6d1 7s2
Curium accumulates in the bones, lungs and liver, where it promotes cancer
Physical Properties
Faza snovi
Trdnina
Gostota
13,51 g/cm3
Tališče
1613,15 K | 1340 °C | 2444 °F
Vrelišče
3383,15 K | 3110 °C | 5630 °F
Talilna toplota
n/a
Izparilna toplota
n/a
Toplotna kapaciteta
-
Abundance in Earth's crust
n/a
Abundance in Universe
n/a
CAS Number
7440-51-9
PubChem CID Number
n/a
Atomic Properties
Atomski polmer
174 pm
Kovalentni polmer
169 pm
Elektronegativnost
1,3 (Paulingova lestvica)
Ionization Potential
5,9915 eV
Atomic Volume
18,28 cm3/mol
Toplotna prevodnost
0,1 W/cm·K
Oksidacijska stanja
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