ملتقى الفيزيائيين العرب > منتديات أقسام الفيزياء > منتدى الفيزياء النووية | ||
URANIUM MINERALS |
الملاحظات |
|
أدوات الموضوع | انواع عرض الموضوع |
|
#1
|
|||
|
|||
![]() uranium (IV) iodide
• Formula as commonly written: UI4 • Hill system formula: I4U1 • CAS registry number: [13470-22-9] • Formula weight: 745.647 • Class: iodide Synonyms • uranium (IV) iodide • uranium iodide • uranium tetraiodide Physical properties • Colour: black • Appearance: crystalline solid • Melting point: 506°C (under I2 atmosphere) • Boiling point: 757 • Density: 5.6 (15°C) 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 I 68.08 -1 [Kr].4d10.5s2.5p6 U 31.92 4 [Rn].5f2 Synthesis Not available Solid state structure • Geometry of uranium: 6-coordinate: octahedral layered • Prototypical structure: ![]() Isotope pattern What follows is the calculated isotope pattern for the UI4 unit with the most intense ion set to 100%. Formula: U1I4 mass % 742 0.0 743 0.7 744 0.0 745 0.0 746 100.0 |
#2
|
|||
|
|||
![]() uranium (IV) oxide
• Formula as commonly written: UO2 • Hill system formula: O2U1 • CAS registry number: [1344-57-6] • Formula weight: 270.028 • Class: oxide Synonyms • uranium (IV) oxide • uranium dioxide • uranium oxide • pitchblende Physical properties • Colour: dark brown • Appearance: crystalline solid • Melting point: 2827°C • Boiling point: • Density: 10970 kg m-3 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 O 11.85 -2 [He].2s2.2p6 U 88.15 4 [Rn].5f2 Synthesis Not available Solid state structure • Geometry of uranium: • Prototypical structure: ![]() Isotope pattern What follows is the calculated isotope pattern for the UO2 unit with the most intense ion set to 100%. Formula: U1O2 mass % 266 0.0 267 0.7 268 0.0 269 0.0 270 100.0 271 0.1 272 0.4 |
#3
|
|||
|
|||
![]() uranium (IV) telluride
• Formula as commonly written: UTe2 • Hill system formula: Te2U1 • CAS registry number: [12138-37-3] • Formula weight: 493.229 • Class: telluride Synonyms • uranium (IV) telluride • uranium ditelluride • uranium telluride Physical properties • Colour: dark grey or black • Appearance: crystalline solid • Melting point: 1180°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 Te 51.74 -2 [Kr].4d10.5s2.5p6 U 48.26 4 [Rn].5f2 Synthesis Alpha and beta forms exist Solid state structure • Geometry of uranium: • Prototypical structure: ![]() Isotope pattern What follows is the calculated isotope pattern for the UTe2 unit with the most intense ion set to 100%. Formula: U1Te2 mass % 480 0.0 481 0.0 482 0.4 483 0.3 484 1.3 485 2.2 486 6.3 487 4.8 488 17.9 489 14.9 490 36.9 491 23.2 492 66.8 493 21.8 494 100.0 495 0.4 496 93.7 497 0.0 498 50.0 |
#4
|
|||
|
|||
![]() uranium (IV, V) oxide
• Formula as commonly written: U4O9 • Hill system formula: O9U4 • CAS registry number: [12037-15-9] • Formula weight: 1096.11 • Class: oxide Synonyms • uranium (IV, V) oxide • uranium oxide • tetrauranium nonaoxide Physical properties • Colour: black • Appearance: crystalline solid • Melting point: • Boiling point: • Density: 11200 kg m-3 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 O 13.14 -2 [He].2s2.2p6 U 86.86 Synthesis Not available Isotope pattern What follows is the calculated isotope pattern for the U4O9 unit with the most intense ion set to 100%. Formula: U4O9 mass % 1090 0.0 1091 0.0 1092 0.0 1093 2.9 1094 0.0 1095 0.0 1096 100.0 1097 0.4 1098 1.8 1099 0.0 1100 0.0 |
#5
|
|||
|
|||
![]() uranium (V) bromide
• Formula as commonly written: UBr5 • Hill system formula: Br5U1 • CAS registry number: [13775-16-1] • Formula weight: 637.549 • Class: bromide Synonyms • uranium (V) bromide • uranium bromide • uranium pentabromide Physical properties • Colour: brown or reddish brown • Appearance: crystalline solid • Melting point: • 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 Br 62.66 -1 [Ar].3d10.4s2.4p6 U 37.34 5 [Rn].5f1 Synthesis Not available Solid state structure • Geometry of uranium: 6 coordinate: octahedral • Prototypical structure: ![]() Isotope pattern What follows is the calculated isotope pattern for the UBr5 unit with the most intense ion set to 100%. Formula: U1Br5 mass % 629 0.0 630 0.1 631 0.0 632 0.4 633 10.6 634 0.7 635 51.4 636 0.7 637 100.0 638 0.3 639 97.3 640 0.1 641 47.3 642 0.0 643 9.2 |
الذين يشاهدون محتوى الموضوع الآن : 1 ( الأعضاء 0 والزوار 1) | |
أدوات الموضوع | |
انواع عرض الموضوع | |
|
|