Tc
Technetium
Chikamu 43 · 98.0 u
Technetium yaive yekutanga yakagadzirwa nevanhu uye haina isotopi yakachengeteka.
Maitiro ekushandisa
| Atomic radius: | 98.0 u |
| Kuomarara | 11.5 g/cm³ |
| Kutonhora Point | 2430.0 K |
| Kutonhora Point | 4538.0 K |
| Kuoneka | Shiny gray methane |
| State at Room Temp | _Kukanganisa: |
Chemical zvinhu
| Electronegativity | 1.9 (Pauling) |
| 1st Ionization Energy | 702.0 kJ/mol |
| Electronegativity: | 53.0 kJ/mol |
| Oxygen | +1, +2, +3, +4, +5, +6, +7 |
Atomic Properties
| Kuisa Kugadzirisa | [Kr] 4d5 5s2 |
| Atomic radius: | 136.0 pm |
| Covalent Radius | 147.0 pm |
| Van der Waals radius | 209.0 pm |
Discovery
| Yakawanikwa ne | Carlo Perrier, Emilio Segre |
| Kuonekwa kwegore | 1937 |
| _Panzvimbo: | Palermo, Italy |
| Akapihwa zita mushure me | ChiGreek 'technetos' chinoreva chakagadzirwa |
Nezve Technetium
Technetium ndiro zita rekuti chigadzirwa chekutanga chakagadzirwa nevanhu, nekuvapomera molybdenum nedeuterons. Technetium-99m ndiyo isotopi inoshandiswa zvakanyanya mukurapa kwechiremba.
Mashandisiro & Maapplication
Medical imaging (Tc-99m muSPECT scans), nuclear medicine diagnostics, uye simbi corrosion inhibitor.
Nhoroondo yemitambo
Technetium yaive yekutanga yakagadzirwa nevanhu, uye zvishoma nezvishoma yakawanikwa mumiviri yevanhu kubva kufission yeuranium.
Isotopes
| Mamwe marudzi ezvinyorwa | Kuwanda | Half-Life | _Kuchengeta |
| 97 | - | 4.21 million years | Hapana |
| 98 | - | 4.2 million years | Hapana |
| 99 | - | 211,100 years | Hapana |
Kuisa Kugadzirisa
[Kr] 4d5 5s2