Bly
82
Pb
Gruppe
14
Periode
6
Blokk
p
Protoner
Elektroner
Nøytroner
82
82
125
Generelle egenskaper
Atomnummer
82
Atomvekt
207,2
Massetall
207
Kategori
Andre metaller
Farge
Skifergrå
Radioaktiv
Nei
From the Latin word plumbum
Krystallstruktur
Face Centered Cubic
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.
Elektroner 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
Fysikalske egenskaper
Fase
Fast stoff
Tetthet
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
Fordampningsvarme
178 kJ/mol
Spesifikk varmekapasitet
0,129 J/g·K
Forekomst i jordskorpa
0,00099%
Forekomst i universet
1×10-6%
CAS Number
7439-92-1
PubChem CID Number
5352425
Atomegenskaper
Atomradius
175 pm
Kovalent radius
146 pm
Elektronegativitet
2,33 (Pauling-skalaen)
Ioniseringsenergi
7,4167 eV
Molart volum
18,17 cm3/mol
Termisk ledningsevne
0,353 W/cm·K
Oksidasjonstilstander
-4, 2, 4
Bruksområder
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
Isotoper
Stabile isotoper
204Pb, 206Pb, 207Pb, 208PbUstabile isotoper
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