Pb
Kutungamira
Chikamu 82 · 207.2 u
Kutungamira ndechimwe chezvinhu zvinokuvadza zvikuru zvinokonzera chirwere cheshuga, uye zvinokonzera chirwere cheshuga.
Maitiro ekushandisa
| Atomic radius: | 207.2 u |
| Kuomarara | 11.342 g/cm³ |
| Kutonhora Point | 600.61 K |
| Kutonhora Point | 2022.0 K |
| Kuoneka | Bluish-grey metallic |
| State at Room Temp | _Kukanganisa: |
Chemical zvinhu
| Electronegativity | 2.33 (Pauling) |
| 1st Ionization Energy | 715.6 kJ/mol |
| Electronegativity: | 35.1 kJ/mol |
| Oxygen | -4, +2, +4 |
Atomic Properties
| Kuisa Kugadzirisa | [Xe] 4f14 5d10 6s2 6p2 |
| Atomic radius: | 175.0 pm |
| Covalent Radius | 146.0 pm |
| Van der Waals radius | 202.0 pm |
Discovery
| Yakawanikwa ne | Known since antiquity |
| _Panzvimbo: | Various (Middle East) |
| Akapihwa zita mushure me | Anglo- Saxon 'lead'; symbol Pb from Latin 'plumbum' |
Nezve Kutungamira
Lead is a heavy, soft, malleable metal used for over 6,000 years. It is toxic, causing nervous system damage. Removing lead from gasoline and paint has been a major public health achievement.
Mashandisiro & Maapplication
Lead-acid mabhatiri, radiation shielding, ammunition, uye kugadzira.
Nhoroondo yemitambo
Vakawanda vevanyori vekare vanofunga kuti kupararira kwezvirwere zvemafuta kubva kumapinji emvura kwakakonzera kupararira kweRoma.
Isotopes
| Mamwe marudzi ezvinyorwa | Kuwanda | Half-Life | _Kuchengeta |
| 206 | 0.241% | - | _Ndiani |
| 207 | 0.221% | - | _Ndiani |
| 208 | 0.524% | - | _Ndiani |
Kuisa Kugadzirisa
[Xe] 4f14 5d10 6s2 6p2