Uranium

92
U
Kumpulan
Tiada
Kala
7
Blok
f
Proton
Elektron
Neutron
92
92
146
Ciri-Ciri Am
Nombor atom
92
Berat atom
238.02891
Nombor jisim
238
Kategori
Aktinid
Warna
Perak
Radioaktif
Ya
Named after the planet Uranus
Struktur hablur
Pusat Tapak Orthorhombic
Sejarah
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.
Bilangan elektron per petala
2, 8, 18, 32, 21, 9, 2
Konfigurasi elektron
[Rn] 5f3 6d1 7s2
U
Uranium-235 was the first isotope that was found to be fissile
Ciri-Ciri Fizikal
Fasa
Pepejal
Ketumpatan
18.95 g/cm3
Takat lebur
1405.35 K | 1132.2 °C | 2069.96 °F
Takat didih
4404.15 K | 4131 °C | 7467.8 °F
Haba pelakuran
14 kJ/mol
Haba pengewapan
420 kJ/mol
Muatan haba molar
0.116 J/g·K
Banyak pada kerak bumi
0.00018%
Banyak pada alam semesta
2×10-8%
A
Kredit imej: Wikimedia Commons (Zxctypo)
A billet of highly enriched uranium
Nombor CAS
7440-61-1
PubChem CID Number
23989
Ciri-Ciri Atom
Jejari atom
156 pm
Jejari kovalen
196 pm
Keelektronegatifan
1.38 (Skala Pauling)
Kebolehan mengion
6.1941 eV
Isipadu atom
12.59 cm3/mol
Daya pengaliran terma
0.276 W/cm·K
Keadaan pengoksidaan
3, 4, 5, 6
Aplikasi
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
Isotop
Isotop stabil
-
Isotop tidak stabil
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