Os
Osmium
Chikamu 76 · 190.23 u
Osmium ndiyo inonyanya kuomarara yezvigadzirwa zvinoitika zvakasikwa pa22.587 g / cm3.
Maitiro ekushandisa
| Atomic radius: | 190.23 u |
| Kuomarara | 22.587 g/cm³ |
| Kutonhora Point | 3306.0 K |
| Kutonhora Point | 5285.0 K |
| Kuoneka | Silvery, bluu cast metallic |
| State at Room Temp | _Kukanganisa: |
Chemical zvinhu
| Electronegativity | 2.2 (Pauling) |
| 1st Ionization Energy | 840.0 kJ/mol |
| Electronegativity: | 103.99 kJ/mol |
| Oxygen | +2, +3, +4, +6, +8 |
Atomic Properties
| Kuisa Kugadzirisa | [Xe] 4f14 5d6 6s2 |
| Atomic radius: | 135.0 pm |
| Covalent Radius | 144.0 pm |
| Van der Waals radius | 216.0 pm |
Discovery
| Yakawanikwa ne | Smithson Tennant |
| Kuonekwa kwegore | 1803 |
| _Panzvimbo: | London, England |
| Akapihwa zita mushure me | Greek 'osme' zvinoreva rufu, kubva kune yakasviba osmium tetroxide |
Nezve Osmium
Osmium is a hard, brittle, bluish-white metal. Osmium tetroxide is highly toxic with a strong smell. The metal is extremely hard and corrosion-resistant.
Mashandisiro & Maapplication
Fountain pen nibs, mameseji emagetsi, zviwanikwa zviviri, uye catalyst (osmium tetroxide).
Nhoroondo yemitambo
Osmium ndiyo inonyanya kuoma chinhu, pamusoro penguva mbiri seyakaoma sezvakatungamira. A cubic foot icharema kupfuura 1,400 pounds.
Isotopes
| Mamwe marudzi ezvinyorwa | Kuwanda | Half-Life | _Kuchengeta |
| 189 | 0.1615% | - | _Ndiani |
| 190 | 0.2626% | - | _Ndiani |
| 192 | 0.4078% | - | _Ndiani |
Kuisa Kugadzirisa
[Xe] 4f14 5d6 6s2