Lood
82
Pb
Groep
14
Periode
6
Blok
p
Protrone
Elektrone
Neutrone
82
82
125
Algemene Eienskappe
Atoom Nommer
82
Atoommassa
207,2
Massa Nommer
207
Kategorie
Hoofgroepmetale
Kleur
Leiklipgrys
Radioaktief
Nee
From the Latin word plumbum
Kristalstruktuur
Gesiggesentreerde kubieke
Geskiendenis
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.
Elektrone per skil
2, 8, 18, 32, 18, 4
Elektronkonfigurasie
[Xe] 4f14 5d10 6s2 6p2
Pencil leads in wooden pencils have never been made from lead
Fisiese Eienskappe
Fase
Soliede
Digtheid
11,342 g/cm3
Smeltpunt
600,61 K | 327,46 °C | 621,43 °F
Kookpunt
2022,15 K | 1749 °C | 3180,2 °F
Heat of Fusion
4,77 kJ/mol
Heat of Vaporization
178 kJ/mol
Spesifieke Hitte Kapasiteit
0,129 J/g·K
Oorvloed in die aardkors
0,00099%
Oorvloed in die heelal
1×10-6%
CAS Nommer
7439-92-1
PubChem CID Nommer
5352425
Atomiese Eienskappe
Atoom radius
175 pm
Kovalente Radius
146 pm
Elektronegatiewiteit
2,33 (Pauling scale)
Ionisasie potensiaal
7,4167 eV
Atoom volume
18,17 cm3/mol
Termiese geleidingsvermoë
0,353 W/cm·K
Oksidasiestate
-4, 2, 4
Toepassings
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
Stabiele Isotope
204Pb, 206Pb, 207Pb, 208PbOnstabiele 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