Platinum
78
Pt
Kumpulan
10
Kala
6
Blok
d
Proton
Elektron
Neutron
78
78
117
Ciri-Ciri Am
Nombor atom
78
Berat atom
195.084
Nombor jisim
195
Kategori
Logam peralihan
Warna
Kelabu
Radioaktif
Tidak
From the Spanish word platina, meaning silver
Struktur hablur
Pusat Wajah Kubik
Sejarah
Platinum was first used by pre-Columbian South American natives to produce artifacts.
Antonio de Ulloa published his findings about platinum in 1748, but Sir Charles Wood also investigated the metal in 1741.
First reference to it as a new metal was made by William Brownrigg in 1750.
Antonio de Ulloa published his findings about platinum in 1748, but Sir Charles Wood also investigated the metal in 1741.
First reference to it as a new metal was made by William Brownrigg in 1750.
Bilangan elektron per petala
2, 8, 18, 32, 17, 1
Konfigurasi elektron
[Xe] 4f14 5d9 6s1
Platinum exists in higher abundances on the Moon and in meteorites
Ciri-Ciri Fizikal
Fasa
Pepejal
Ketumpatan
21.45 g/cm3
Takat lebur
2041.45 K | 1768.3 °C | 3214.94 °F
Takat didih
4098.15 K | 3825 °C | 6917 °F
Haba pelakuran
20 kJ/mol
Haba pengewapan
490 kJ/mol
Muatan haba molar
0.133 J/g·K
Banyak pada kerak bumi
3.7×10-6%
Banyak pada alam semesta
5×10-7%
Nombor CAS
7440-06-4
Nombor PubChem CID
23939
Ciri-Ciri Atom
Jejari atom
139 pm
Jejari kovalen
136 pm
Keelektronegatifan
2.28 (Skala Pauling)
Kebolehan mengion
8.9587 eV
Isipadu atom
9.10 cm3/mol
Daya pengaliran terma
0.716 W/cm·K
Keadaan pengoksidaan
2, 4, 5, 6
Aplikasi
The most common use of platinum is as a catalyst in chemical reactions.
Platinum is used in jewelry, decoration and dental work.
Platinum-cobalt, an alloy of roughly three parts platinum and one part cobalt, is used to make relatively strong permanent magnets.
Platinum-based anodes are used in ships, pipelines, and steel piers.
Platinum is used in jewelry, decoration and dental work.
Platinum-cobalt, an alloy of roughly three parts platinum and one part cobalt, is used to make relatively strong permanent magnets.
Platinum-based anodes are used in ships, pipelines, and steel piers.
Platinum is considered to be non-toxic
Isotop
Isotop stabil
192Pt, 194Pt, 195Pt, 196Pt, 198PtIsotop tidak stabil
166Pt, 167Pt, 168Pt, 169Pt, 170Pt, 171Pt, 172Pt, 173Pt, 174Pt, 175Pt, 176Pt, 177Pt, 178Pt, 179Pt, 180Pt, 181Pt, 182Pt, 183Pt, 184Pt, 185Pt, 186Pt, 187Pt, 188Pt, 189Pt, 190Pt, 191Pt, 193Pt, 197Pt, 199Pt, 200Pt, 201Pt, 202Pt