मोलिब्डेनम
42
Mo
समूह
6
आवर्त
5
ब्लॉक
d
प्रोटॉन
इलेक्ट्रॉन्स
न्यूट्रॉन
42
42
54
सामान्य गुण
परमाणु संख्या
42
परमाणु भार
95.96
द्रव्यमान संख्या
96
श्रेणी
संक्रमण धातु
रंग
सलेटी
रेडियोधर्मी
नहीं
From the Greek word molybdo, lead
क्रिस्टल की संरचना
शरीर केंद्रित घन
इतिहास
Molybdenite was often confused for graphite and it was thought to contain lead.
In 1778 Swedish scientist Carl Wilhelm Scheele proved that molybdenite was not graphite nor did it contain lead.
In 1781, Scheele's friend and countryman, Peter J. Hjelm isolated the metal by using carbon and linseed oil.
In 1778 Swedish scientist Carl Wilhelm Scheele proved that molybdenite was not graphite nor did it contain lead.
In 1781, Scheele's friend and countryman, Peter J. Hjelm isolated the metal by using carbon and linseed oil.
इलेक्ट्रॉन प्रति शेल
2, 8, 18, 13, 1
इलेक्ट्रॉन कॉन्फिगरेशन
[Kr] 4d5 5s1
Molybdenum is essential for plant foliage health
भौतिक गुण
अवस्था
ठोस
घनत्व
10.22 g/cm3
गलनांक
2896.15 K | 2623 °C | 4753.4 °F
क्वथनांक
4912.15 K | 4639 °C | 8382.2 °F
विलय ऊष्मा
36 कि.जूल/मोल
वाष्पीकरण ऊष्मा
600 कि.जूल/मोल
विशिष्ट ऊष्मा क्षमता
0.251 जूल/ग्राम•केल्विन
पृथ्वी की पपड़ी में प्रचुरता
0.00011%
ब्रह्मांड में प्रचुरता
5×10-7%
सी ए एस संख्या
7439-98-7
PubChem सी.आई.डी. संख्या
23932
परमाण्विक गुण
परमाणु का त्रिज्या
139 pm
संयोजी त्रिज्या
154 pm
इलेक्ट्रोनेगेटिविटी
2.16 (पाइलिंग पैमाना)
आयनीकरण ऊर्जाएं
7.0924 eV
परमाणु आयतन
9.4 से.मी.३/मोल
तापीय चालकता
1.38 W/cm·K
ऑक्सीकरण स्थितियां
-2, -1, 1, 2, 3, 4, 5, 6
उपयोग
Molybdenum is used as glass furnace electrodes due to its high melting point.
The metal is also used in nuclear energy applications and for missile and aircraft parts.
Molybdenum is valuable as a catalyst in the refining of petroleum.
Molybdenum is used in small quantities to harden steel and is used in many alloys.
The metal is also used in nuclear energy applications and for missile and aircraft parts.
Molybdenum is valuable as a catalyst in the refining of petroleum.
Molybdenum is used in small quantities to harden steel and is used in many alloys.
Molybdenum is toxic in all but small quantities
समस्थानिक
स्थिर आइसोटोप
92Mo, 94Mo, 95Mo, 96Mo, 97Mo, 98Moअस्थिर समस्थानिक
83Mo, 84Mo, 85Mo, 86Mo, 87Mo, 88Mo, 89Mo, 90Mo, 91Mo, 93Mo, 99Mo, 100Mo, 101Mo, 102Mo, 103Mo, 104Mo, 105Mo, 106Mo, 107Mo, 108Mo, 109Mo, 110Mo, 111Mo, 112Mo, 113Mo, 114Mo, 115Mo