Antimon

51
Sb
Golongan
15
Periode
5
Blok
p
Proton
Elektron
Neutron
51
51
71
Sifat Umum
Nomor atom
51
Massa atom
121,76
Nomor massa
122
Kategori
Metaloid
Warna
Perak
Radioaktif
Tidak
From the Greek word anti plus monos - a metal not found alone
Struktur kristal
Trigonal Sederhana
Sejarah
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.
Elektron per kulit
2, 8, 18, 18, 5
Konfigurasi elektron
[Kr] 4d10 5s2 5p3
Sb
Antimony is a poor conductor of heat and electricity
Sifat Fisika
Fase
Solid
Kepadatan
6,685 g/cm3
Titik lebur
903,78 K | 630,63 °C | 1167,13 °F
Titik didih
1860,15 K | 1587 °C | 2888,6 °F
Kalor peleburan
19,7 kJ/mol
Kalor penguapan
68 kJ/mol
Kapasitas kalor molar
0,207 J/g·K
Kelimpahan di kerak bumi
0,00002%
Kelimpahan di alam semesta
4×10-8%
Ultrapure
Kredit Gambar: Images-of-elements
Ultrapure metallic antimony piece
Nomor CAS
7440-36-0
PubChem CID Number
5354495
Sifat Atom
Jari-jari atom
140 pm
Jari-jari kovalen
139 pm
Elektronegativitas
2,05 (Skala Pauling)
Potensi Ionisasi
8,6084 eV
Volume atom
18,22 cm3/mol
Kondusivitas termal
0,243 W/cm·K
Bilangan oksidasi
-3, 3, 5
Aplikasi
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.
Antimony and many of its compounds are toxic
Isotop
Isotop stabil
121Sb, 123Sb
Isotop tidak stabil
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