Blei
82
Pb
Gruppe
14
Periode
6
Block
p
Protonen
Elektronen
Neutronen
82
82
125
Generelle Eigenschaften
Ordnungszahl
82
Atommasse
207,2
Massenzahl
207
Kategorie
Metalle
Farbe
Schiefergrau
Radioaktiv
Nein
Aus dem Lateinischen plumbum
Kristallstruktur
Kubisch flächenzentriert
Geschichte
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.
Elektronen pro Schale
2, 8, 18, 32, 18, 4
Elektronenkonfiguration
[Xe] 4f14 5d10 6s2 6p2
Pencil leads in wooden pencils have never been made from lead
Physikalische Eigenschaften
Aggregatzustand
Fest
Dichte
11,342 g/cm3
Schmelzpunkt
600,61 K | 327,46 °C | 621,43 °F
Siedepunkt
2022,15 K | 1749 °C | 3180,2 °F
Schmelzwärme
4,77 kJ/mol
Verdampfungswärme
178 kJ/mol
Spezifische Wärmekapazität
0,129 J/g·K
Häufigkeit in der Erdkruste
0,00099%
Häufigkeit im Universum
1×10-6%
CAS-Nummer
7439-92-1
PubChem CID-Nummer
5352425
Atomeigenschaften
Atomradius
175 pm
Kovalenter Radius
146 pm
Elektronegativität
2,33 (Pauling-Skala)
Ionisierungsenergie
7,4167 eV
Molares Volumen
18,17 cm3/mol
Wärmeleitfähigkeit
0,353 W/cm·K
Oxidationszustände
-4, 2, 4
Anwendung
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
Isotope
Stabile Isotope
204Pb, 206Pb, 207Pb, 208PbInstabile Isotope
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