Uraan

92
U
Groep
n/a
Periode
7
Blok
f
Protrone
Elektrone
Neutrone
92
92
146
Algemene Eienskappe
Atoom Nommer
92
Atoommassa
238,02891
Massa Nommer
238
Kategorie
Aktiniede
Kleur
Silver
Radioaktief
Ja
Named after the planet Uranus
Kristalstruktuur
Base Centered Orthorhombic
Geskiendenis
Uranium was discovered in 1789 by the German chemist Martin Heinrich Klaproth.

In 1841, Eugène-Melchior Péligot isolated the first sample of uranium metal by heating uranium tetrachloride with potassium.

Antoine Henri Becquerel discovered radioactivity by using uranium in 1896.
Elektrone per skil
2, 8, 18, 32, 21, 9, 2
Elektronkonfigurasie
[Rn] 5f3 6d1 7s2
U
Uranium-235 was the first isotope that was found to be fissile
Fisiese Eienskappe
Fase
Soliede
Digtheid
18,95 g/cm3
Smeltpunt
1405,35 K | 1132,2 °C | 2069,96 °F
Kookpunt
4404,15 K | 4131 °C | 7467,8 °F
Heat of Fusion
14 kJ/mol
Heat of Vaporization
420 kJ/mol
Spesifieke Hitte Kapasiteit
0,116 J/g·K
Oorvloed in die aardkors
0,00018%
Oorvloed in die heelal
2×10-8%
A
Beeld Krediete: Wikimedia Commons (Zxctypo)
A billet of highly enriched uranium
CAS Nommer
7440-61-1
PubChem CID Nommer
23989
Atomiese Eienskappe
Atoom radius
156 pm
Kovalente Radius
196 pm
Elektronegatiewiteit
1,38 (Pauling scale)
Ionisasie potensiaal
6,1941 eV
Atoom volume
12,59 cm3/mol
Termiese geleidingsvermoë
0,276 W/cm·K
Oksidasiestate
3, 4, 5, 6
Toepassings
Uranium is used as fuel for nuclear power plants.

Uranium is used as a colorant in uranium glass, producing orange-red to lemon yellow hues.

It was also used for tinting and shading in early photography.

The major application of uranium in the military sector is in high-density penetrators.
Uranium is toxic and highly radioactive
Isotope
Stabiele Isotope
-
Onstabiele Isotope
215U, 216U, 217U, 218U, 219U, 220U, 221U, 222U, 223U, 224U, 225U, 226U, 227U, 228U, 229U, 230U, 231U, 232U, 233U, 234U, 235U, 236U, 237U, 238U, 239U, 240U, 241U, 242U