Svinec
82
Pb
Skupina
14
Perioda
6
Blok
p
Protons
Electrons
Neutrons
82
82
125
General Properties
Vrstno število
82
Atomska teža
207,2
Mass Number
207
Kategorija
Šibke kovine
Barva
Slate Gray
Radioactive
Ne
From the Latin word plumbum
Kristalna struktura
Ploskovno centrirana kubična
Zgodovina
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.
Electrons per shell
2, 8, 18, 32, 18, 4
Razporeditev elektronov
[Xe] 4f14 5d10 6s2 6p2
Pencil leads in wooden pencils have never been made from lead
Physical Properties
Faza snovi
Trdnina
Gostota
11,342 g/cm3
Tališče
600,61 K | 327,46 °C | 621,43 °F
Vrelišče
2022,15 K | 1749 °C | 3180,2 °F
Talilna toplota
4,77 kJ/mol
Izparilna toplota
178 kJ/mol
Toplotna kapaciteta
0,129 J/g·K
Abundance in Earth's crust
0,00099%
Abundance in Universe
1×10-6%
CAS Number
7439-92-1
PubChem CID Number
5352425
Atomic Properties
Atomski polmer
175 pm
Kovalentni polmer
146 pm
Elektronegativnost
2,33 (Paulingova lestvica)
Ionization Potential
7,4167 eV
Atomic Volume
18,17 cm3/mol
Toplotna prevodnost
0,353 W/cm·K
Oksidacijska stanja
-4, 2, 4
Applications
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
Isotopes
Stable Isotopes
204Pb, 206Pb, 207Pb, 208PbUnstable Isotopes
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