प्लाटिनम
78
Pt
समूह
10
आवर्त
6
ब्लॉक
d
प्रोटॉन
इलेक्ट्रॉन्स
न्यूट्रॉन
78
78
117
सामान्य गुण
परमाणु संख्या
78
परमाणु भार
195.084
द्रव्यमान संख्या
195
श्रेणी
संक्रमण धातु
रंग
सलेटी
रेडियोधर्मी
नहीं
From the Spanish word platina, meaning silver
क्रिस्टल की संरचना
चेहरा केंद्रित घन
इतिहास
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.
इलेक्ट्रॉन प्रति शेल
2, 8, 18, 32, 17, 1
इलेक्ट्रॉन कॉन्फिगरेशन
[Xe] 4f14 5d9 6s1
Platinum exists in higher abundances on the Moon and in meteorites
भौतिक गुण
अवस्था
ठोस
घनत्व
21.45 g/cm3
गलनांक
2041.45 K | 1768.3 °C | 3214.94 °F
क्वथनांक
4098.15 K | 3825 °C | 6917 °F
विलय ऊष्मा
20 कि.जूल/मोल
वाष्पीकरण ऊष्मा
490 कि.जूल/मोल
विशिष्ट ऊष्मा क्षमता
0.133 जूल/ग्राम•केल्विन
पृथ्वी की पपड़ी में प्रचुरता
3.7×10-6%
ब्रह्मांड में प्रचुरता
5×10-7%
सी ए एस संख्या
7440-06-4
PubChem सी.आई.डी. संख्या
23939
परमाण्विक गुण
परमाणु का त्रिज्या
139 pm
संयोजी त्रिज्या
136 pm
इलेक्ट्रोनेगेटिविटी
2.28 (पाइलिंग पैमाना)
आयनीकरण ऊर्जाएं
8.9587 eV
परमाणु आयतन
9.10 से.मी.३/मोल
तापीय चालकता
0.716 W/cm·K
ऑक्सीकरण स्थितियां
2, 4, 5, 6
उपयोग
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
समस्थानिक
स्थिर आइसोटोप
192Pt, 194Pt, 195Pt, 196Pt, 198Ptअस्थिर समस्थानिक
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