uranium (II) sulphide
• Formula as commonly written: US
• Hill system formula: S1U1
• CAS registry number: [12039-11-1]
• Formula weight: 270.095
• Class: sulphide
Synonyms
• uranium (II) sulphide
• uranium sulphide
Physical properties
• Colour: silvery
• Appearance: crystalline solid
• Melting point: 246°C
• Boiling point:
• Density:
Element analysis and oxidation numbers
For each compound, and where possible, a formal oxidation number for each element is given, but the usefulness of this number is limited, especially so for p-block elements in particular. Based upon that oxidation number, an electronic configuration is also given but note that for more exotic compounds you should view this as a guide only.
Element % Formal oxidation state Formal electronic configuration
S 11.87 -2 [Ne].3s2.3p6
U 88.13 2 [Rn].5f4
Synthesis
Not available
Solid state structure
• Geometry of uranium: 6 coordinate: octahedral
• Prototypical structure: NaCl (rock salt)
Isotope pattern
What follows is the calculated isotope pattern for the US unit with the most intense ion set to 100%.
Formula: U1S1
mass %
266 0.0
267 0.7
268 0.0
269 0.0
270 100.0
271 0.8
272 4.4
273 0.0
274 0.0