Ba
Barium
Chikamu 56 · 137.33 u
Barium compounds inoshandiswa mukurapa kwechiremba uye kugadzirwa kwechiedza chematombo.
Maitiro ekushandisa
| Atomic radius: | 137.33 u |
| Kuomarara | 3.594 g/cm³ |
| Kutonhora Point | 1000.0 K |
| Kutonhora Point | 2170.0 K |
| Kuoneka | Silvery gray metallic |
| State at Room Temp | _Kukanganisa: |
Chemical zvinhu
| Electronegativity | 0.89 (Pauling) |
| 1st Ionization Energy | 502.9 kJ/mol |
| Electronegativity: | 13.95 kJ/mol |
| Oxygen | +2 |
Atomic Properties
| Kuisa Kugadzirisa | [Xe] 6s2 |
| Atomic radius: | 222.0 pm |
| Covalent Radius | 215.0 pm |
| Van der Waals radius | 268.0 pm |
Discovery
| Yakawanikwa ne | Carl Wilhelm Scheele |
| Kuonekwa kwegore | 1772 |
| _Panzvimbo: | Uppsala, Sweden |
| Akapihwa zita mushure me | ChiGreek 'barys' chinoreva kuti chinorema |
Nezve Barium
Barium i soft, silvery alkaline earth metal kamwe kuwanikwa zvakachena mumiviri. Barium sulfate inoshandiswa se radiocontrast chiremba yekudya X-rays. Barium compounds kugadzirwa mavara achipisa mufireworks.
Mashandisiro & Maapplication
Medical X-ray imaging, mafuta drilling fluids, fireworks (yechiedza), girazi, uye rats poison.
Nhoroondo yemitambo
Vachiremba vanokurudzira vanhu kuti vatenge barium sulfate kuti vakwanise kuongororwa neX-rays. Barium isiri yakaoma asi iyo sulfate isiri nyore kuparadza.
Isotopes
| Mamwe marudzi ezvinyorwa | Kuwanda | Half-Life | _Kuchengeta |
| 134 | 0.02417% | - | _Ndiani |
| 136 | 0.07854% | - | _Ndiani |
| 137 | 0.11232% | - | _Ndiani |
| 138 | 0.71698% | - | _Ndiani |
Kuisa Kugadzirisa
[Xe] 6s2