Bismut

83
Bi
Golongan
15
Periode
6
Blok
p
Proton
Elektron
Neutron
83
83
126
Sifat Umum
Nomor atom
83
Massa atom
208,9804
Nomor massa
209
Kategori
Logam pasca-​transisi
Warna
Abu-abu
Radioaktif
Tidak
From the German Weisse Masse, meaning white mass
Struktur kristal
Monoklinik Berpusat-dasar
Sejarah
Bismuth has been known since ancient times, so no one person is credited with its discovery.

The element was confused in early times with tin and lead because of its resemblance to those elements.

In 1753, French chemist Claude François Geoffroy demonstrated that this metal is distinct from lead and tin.
Elektron per kulit
2, 8, 18, 32, 18, 5
Konfigurasi elektron
[Xe] 4f14 5d10 6s2 6p3
Bi
Bismuth has unusually high electrical resistance for a metal
Sifat Fisika
Fase
Solid
Kepadatan
9,78 g/cm3
Titik lebur
544,65 K | 271,5 °C | 520,7 °F
Titik didih
1837,15 K | 1564 °C | 2847,2 °F
Kalor peleburan
10,9 kJ/mol
Kalor penguapan
160 kJ/mol
Kapasitas kalor molar
0,122 J/g·K
Kelimpahan di kerak bumi
2,5×10-6%
Kelimpahan di alam semesta
7×10-8%
Bismuth
Kredit Gambar: Images-of-elements
Bismuth crystal with fancy oxide film
Nomor CAS
7440-69-9
PubChem CID Number
5359367
Sifat Atom
Jari-jari atom
156 pm
Jari-jari kovalen
148 pm
Elektronegativitas
2,02 (Skala Pauling)
Potensi Ionisasi
7,2856 eV
Volume atom
21,3 cm3/mol
Kondusivitas termal
0,0797 W/cm·K
Bilangan oksidasi
-3, 3, 5
Aplikasi
Bismuth is used in producing malleable irons and is used as a catalyst for making acrylic fibers.

Bismuth oxychloride is used in cosmetics, as a pigment in paint for eye shadows, hair sprays and nail polishes.

It has also been used as a replacement for lead in shot, bullets and less-lethal riot gun ammunition.
Bismuth is considered to be non-toxic
Isotop
Isotop stabil
-
Isotop tidak stabil
184Bi, 185Bi, 186Bi, 187Bi, 188Bi, 189Bi, 190Bi, 191Bi, 192Bi, 193Bi, 194Bi, 195Bi, 196Bi, 197Bi, 198Bi, 199Bi, 200Bi, 201Bi, 202Bi, 203Bi, 204Bi, 205Bi, 206Bi, 207Bi, 208Bi, 209Bi, 210Bi, 211Bi, 212Bi, 213Bi, 214Bi, 215Bi, 216Bi, 217Bi, 218Bi