Bly
82
Pb
Grupp
14
Period
6
Block
p
Protoner
Elektroner
Neutroner
82
82
125
Generella Egenskaper
Atomnummer
82
Atommassa
207,2
Masstal
207
Kategori
Posttransitionsmetaller
Färg
Skiffergrå
Radioaktiv
Nej
From the Latin word plumbum
Kristallstruktur
Ytcentrerat kubiskt
Historia
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 skal
2, 8, 18, 32, 18, 4
Elektronkonfiguration
[Xe] 4f14 5d10 6s2 6p2
Pencil leads in wooden pencils have never been made from lead
Fysikaliska Egenskaper
Aggregationstillstånd
Fast
Densitet
11,342 g/cm3
Smältpunkt
600,61 K | 327,46 °C | 621,43 °F
Kokpunkt
2022,15 K | 1749 °C | 3180,2 °F
Smältvärme
4,77 kJ/mol
Ångbildningsvärme
178 kJ/mol
Specifik värmekapacitet
0,129 J/g·K
Förekomst i jordskorpan
0,00099%
Förekomst i universum
1×10-6%
CAS-nummer
7439-92-1
PubChem CID-nummer
5352425
Atomära Egenskaper
Atomradie
175 pm
Kovalent radie
146 pm
Elektronegativitet
2,33 (Paulingskalan)
Jonisationspotential
7,4167 eV
Molvolym
18,17 cm3/mol
Värmeledningsförmåga
0,353 W/cm·K
Oxidationstillstånd
-4, 2, 4
Användningsområden
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
Stabila isotoper
204Pb, 206Pb, 207Pb, 208PbInstabila 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