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Rhenium
Chikamu 75 · 186.21 u
Rhenium ndiyo imwe yezvinhu zvakaomarara zvikuru neyechitatu yepamusoro tembiricha yekucheka.
Maitiro ekushandisa
| Atomic radius: | 186.21 u |
| Kuomarara | 21.02 g/cm³ |
| Kutonhora Point | 3459.0 K |
| Kutonhora Point | 5869.0 K |
| Kuoneka | Silvery-grayish metallic |
| State at Room Temp | _Kukanganisa: |
Chemical zvinhu
| Electronegativity | 1.9 (Pauling) |
| 1st Ionization Energy | 760.0 kJ/mol |
| Electronegativity: | 5.8 kJ/mol |
| Oxygen | +1, +2, +3, +4, +5, +6, +7 |
Atomic Properties
| Kuisa Kugadzirisa | [Xe] 4f14 5d5 6s2 |
| Atomic radius: | 137.0 pm |
| Covalent Radius | 151.0 pm |
| Van der Waals radius | 217.0 pm |
Discovery
| Yakawanikwa ne | Masataka Ogawa, Walter Noddack, Ida Tacke, Otto Berg |
| Kuonekwa kwegore | 1925 |
| _Panzvimbo: | Germany |
| Akapihwa zita mushure me | Latin 'Rhenus' zvinoreva Rhine River |
Nezve Rhenium
Rhenium isimbi ine grey-yesirivha, yakaoma simbi ine yechitatu-yepamusoro tembiricha yekupisa. Iyi yaive yekutanga yakachengeteka chinhu chakaitwa. Kugadzirwa kwegore kwepasi rose kwaive chete 50 tons.
Mashandisiro & Maapplication
Jet injini superalloys, petrochemical kupurasitiki catalysts, thermocouples, uye mass spectrometer filaments.
Nhoroondo yemitambo
Rhenium yaive yechipiri chete yezvigadzirwa zvesimbi zvakawanikwa (1925) uye chete 50 tons anoshandiswa gore rega rega pasi rose.
Isotopes
| Mamwe marudzi ezvinyorwa | Kuwanda | Half-Life | _Kuchengeta |
| 185 | 0.374% | - | _Ndiani |
| 187 | 0.626% | 4.12e10 years | Hapana |
Kuisa Kugadzirisa
[Xe] 4f14 5d5 6s2