Lood
82
Pb
Groep
14
Periode
6
Blok
p
Protonen
Elektronen
Neutronen
82
82
125
Algemene Eigenschappen
Atoomnummer
82
Atomair gewicht
207,2
Massa Getal
207
Categorie
Hoofdgroepmetalen
Kleur
Antracietgrijs
Radioactief
Nee
From the Latin word plumbum
Kristalstructuur
Zijvlak-gecentreerde Kubus
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.
Eletronen per schil
2, 8, 18, 32, 18, 4
Electronconfiguratie
[Xe] 4f14 5d10 6s2 6p2
Pencil leads in wooden pencils have never been made from lead
Fysieke Eigenschappen
Fase
Vast
Dichtheid
11,342 g/cm3
Smeltpunt
600,61 K | 327,46 °C | 621,43 °F
Kookpunt
2022,15 K | 1749 °C | 3180,2 °F
Fusiewarmte
4,77 kJ/mol
Verdampingswarmte
178 kJ/mol
Specifieke Warmtecapaciteit
0,129 J/g·K
Overvloedig aanwezig in de aardkorst
0,00099%
Overvloedig aanwezig in het universum
1×10-6%
CAS-nummer
7439-92-1
PubChem CID nummer
5352425
Atoomeigenschappen
Atoomstraal
175 pm
Covalentiestraal
146 pm
Electronegativiteit
2,33 (Pauling schaal)
Ionisatiepotentiaal
7,4167 eV
Atoomvolume
18,17 cm3/mol
Thermische geleiding
0,353 W/cm·K
Oxidatietoestanden
-4, 2, 4
Toepassingen
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
Isotopen
Stabiele isotopen
204Pb, 206Pb, 207Pb, 208PbInstabiele isotopen
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