Antimon
51
Sb
Gruppe
15
Periode
5
Blokk
p
Protons
Electrons
Neutrons
51
51
71
Generelle eigenskapar
Atomnummer
51
Atommasse
121,76
Mass Number
122
Kategori
Halvmetall
Farge
Silver
Radioactive
Nei
From the Greek word anti plus monos - a metal not found alone
Krystallstruktur
Simple Trigonal
Historie
One of antimony's minerals, stibnite was recognized in predynastic Egypt as an eye cosmetic as early as about 3100 BC.
The first European description of a procedure for isolating antimony is in the book De la pirotechnia of 1540 by Vannoccio Biringuccio.
The first natural occurrence of pure antimony in the Earth's crust was described by the Swedish scientist and local mine district engineer Anton von Swab in 1783.
The first European description of a procedure for isolating antimony is in the book De la pirotechnia of 1540 by Vannoccio Biringuccio.
The first natural occurrence of pure antimony in the Earth's crust was described by the Swedish scientist and local mine district engineer Anton von Swab in 1783.
Elektron per energinivå
2, 8, 18, 18, 5
Elektronkonfigurasjon
[Kr] 4d10 5s2 5p3
Antimony is a poor conductor of heat and electricity
Fysiske eigenskapar
Tilstandsform
Fast stoff
Tettleik
6,685 g/cm3
Smeltepunkt
903,78 K | 630,63 °C | 1167,13 °F
Kokepunkt
1860,15 K | 1587 °C | 2888,6 °F
Smeltevarme
19,7 kJ/mol
Fordampingsvarme
68 kJ/mol
Spesifikk varmekapasitet
0,207 J/g·K
Abundance in Earth's crust
0,00002%
Abundance in Universe
4×10-8%
CAS Number
7440-36-0
PubChem CID Number
5354495
Atom eigenskapar
Atomradius
140 pm
Kovalent radius
139 pm
Elektronegativitet
2,05 (Paulings skala)
Ioniseringspotensial
8,6084 eV
Molart volum
18,22 cm3/mol
Termisk konduktivitet
0,243 W/cm·K
Oksidasjonstrinn
-3, 3, 5
Applications
The largest applications for metallic antimony are as alloying material for lead and tin and for lead antimony plates in lead-acid batteries.
Alloying lead and tin with antimony improves the properties of the alloys which are used in solders, bullets and plain bearings.
Antimony trioxide is used as a flame retardant in adhesives, plastics, rubber and textiles.
Alloying lead and tin with antimony improves the properties of the alloys which are used in solders, bullets and plain bearings.
Antimony trioxide is used as a flame retardant in adhesives, plastics, rubber and textiles.
Antimony and many of its compounds are toxic
Isotopes
Stable Isotopes
121Sb, 123SbUnstable Isotopes
103Sb, 104Sb, 105Sb, 106Sb, 107Sb, 108Sb, 109Sb, 110Sb, 111Sb, 112Sb, 113Sb, 114Sb, 115Sb, 116Sb, 117Sb, 118Sb, 119Sb, 120Sb, 122Sb, 124Sb, 125Sb, 126Sb, 127Sb, 128Sb, 129Sb, 130Sb, 131Sb, 132Sb, 133Sb, 134Sb, 135Sb, 136Sb, 137Sb, 138Sb, 139Sb