Bly
82
Pb
Gruppe
14
Periode
6
Blokk
p
Proton
Elektron
Nøytron
82
82
125
Generelle eigenskapar
Atomnummer
82
Atommasse
207,2
Massetal
207
Kategori
Metall
Farge
Skifergrå
Radioaktiv
Nei
From the Latin word plumbum
Krystallstruktur
Flatesentrert kubisk
Historie
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.
Elektron per energinivå
2, 8, 18, 32, 18, 4
Elektronkonfigurasjon
[Xe] 4f14 5d10 6s2 6p2
Pencil leads in wooden pencils have never been made from lead
Fysiske eigenskapar
Tilstandsform
Fast stoff
Tettleik
11,342 g/cm3
Smeltepunkt
600,61 K | 327,46 °C | 621,43 °F
Kokepunkt
2022,15 K | 1749 °C | 3180,2 °F
Smeltevarme
4,77 kJ/mol
Fordampingsvarme
178 kJ/mol
Spesifikk varmekapasitet
0,129 J/g·K
Førekomst i jordskorpa
0,00099%
Førekomst i universet
1×10-6%
CAS-nummer
7439-92-1
PubChem CID-nummer
5352425
Atom eigenskapar
Atomradius
175 pm
Kovalent radius
146 pm
Elektronegativitet
2,33 (Paulings skala)
Ioniseringspotensial
7,4167 eV
Molart volum
18,17 cm3/mol
Termisk konduktivitet
0,353 W/cm·K
Oksidasjonstrinn
-4, 2, 4
Bruksområde
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
Isotopar
Stabile isotopar
204Pb, 206Pb, 207Pb, 208PbUstabile isotopar
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