Olovo
82
Pb
Skupina
14
Perioda
6
Blok
p
Protoni
Elektroni
Neutroni
82
82
125
Opća svojstva
Atomski broj
82
Relativna atomska masa
207,2
Maseni broj
207
Kategorija
Slabi metali
Boja
Škriljasto siva
Radioaktivan
Ne
Od latinske riječi plumbum
Kristalna struktura
Kubna plošno centrirana
Povijest
Metallic lead beads dating back to 6400 BC have been found in Çatalhöyük in modern-day Turkey.
The Romans also used lead in molten form to secure iron pins that held together large limestone blocks in certain monumental buildings.
In alchemy, lead was thought to be the oldest metal and was associated with the planet Saturn.
The Romans also used lead in molten form to secure iron pins that held together large limestone blocks in certain monumental buildings.
In alchemy, lead was thought to be the oldest metal and was associated with the planet Saturn.
Elektrona po ljusci
2, 8, 18, 32, 18, 4
Elektronska konfiguracija
[Xe] 4f14 5d10 6s2 6p2
Pencil leads in wooden pencils have never been made from lead
Fizikalna svojstva
Agregacijsko stanje
Čvrsto
Gustoća
11,342 g/cm3
Talište
600,61 K | 327,46 °C | 621,43 °F
Vrelište
2022,15 K | 1749 °C | 3180,2 °F
Toplina taljenja
4,77 kJ/mol
Toplina isparavanja
178 kJ/mol
Specifični toplinski kapacitet
0,129 J/g·K
Zastupljenost u Zemljinoj kori
0,00099%
Zastupljenost u svemiru
1×10-6%
CAS broj
7439-92-1
PubChem CID broj
5352425
Atomska svojstva
Atomski radijus
175 pm
Kovalentni radijus
146 pm
Elektronegativnost
2,33 (Paulingova ljestvica)
Potencijal ionizacije
7,4167 eV
Atomski volumen
18,17 cm3/mol
Toplinska vodljivost
0,353 W/cm·K
Stanja oksidacije
-4, 2, 4
Primjene
Large quantities of lead, both as the metal and as the dioxide, are used in storage batteries.
Lead is used as electrodes in the process of electrolysis.
It is added to brass to reduce machine tool wear.
Lead, in either pure form or alloyed with tin, or antimony is the traditional material for bullets and shot in firearms use.
Lead is used as electrodes in the process of electrolysis.
It is added to brass to reduce machine tool wear.
Lead, in either pure form or alloyed with tin, or antimony is the traditional material for bullets and shot in firearms use.
Lead and its compounds are poisonous
Izotopi
Stabilni izotopi
204Pb, 206Pb, 207Pb, 208PbNestabilni izotopi
178Pb, 179Pb, 180Pb, 181Pb, 182Pb, 183Pb, 184Pb, 185Pb, 186Pb, 187Pb, 188Pb, 189Pb, 190Pb, 191Pb, 192Pb, 193Pb, 194Pb, 195Pb, 196Pb, 197Pb, 198Pb, 199Pb, 200Pb, 201Pb, 202Pb, 203Pb, 205Pb, 209Pb, 210Pb, 211Pb, 212Pb, 213Pb, 214Pb, 215Pb