Molibden

42
Mo
Guruh
6
Davr
5
Block
d
Protonlar
Elektronlar
Neytronlar
42
42
54
General Properties
Atom raqami
42
Atom massasi
95,96
Mass Number
96
Turkum
Oʻtish metallar
Ranggi
Gray
Radioaktivlik
Yoʻq
From the Greek word molybdo, lead
Crystal Structure
Body Centered Cubic
Tarix
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.
Electrons per shell
2, 8, 18, 13, 1
Elektron konfiguratsiyasi
[Kr] 4d5 5s1
Mo
Molybdenum is essential for plant foliage health
Physical Properties
Phase
Qattiq modda
Zichlik
10,22 g/cm3
Erish harorati
2896,15 K | 2623 °C | 4753,4 °F
Qaynash harorati
4912,15 K | 4639 °C | 8382,2 °F
Heat of Fusion
36 kJ/mol
Heat of Vaporization
600 kJ/mol
Solishtirma issiqlik sigʻimi
0,251 J/g·K
Abundance in Earth's crust
0,00011%
Abundance in Universe
5×10-7%
Molybdenum
Image Credits: Images-of-elements
Molybdenum with rough, oxidized surface
CAS Number
7439-98-7
PubChem CID Number
23932
Atomic Properties
Atom radiusi
139 pm
Kovalentlik radiusi
154 pm
Elektrmanfiylik
2,16 (Poling boʻyicha)
Ionization Potential
7,0924 eV
Molyar hajm
9,4 cm3/mol
Issiqlik oʻtkazuvchanlik
1,38 W/cm·K
Oksidlanish darajasi
-2, -1, 1, 2, 3, 4, 5, 6
Applications
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.
Molybdenum is toxic in all but small quantities
Izotoplar
Barqaror izotoplar
92Mo, 94Mo, 95Mo, 96Mo, 97Mo, 98Mo
Beqaror izotoplar
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