Molibden
42
Mo
Skupina
6
Perioda
5
Blok
d
Protoni
Elektroni
Nevtroni
42
42
54
Splošne lastnosti
Vrstno število
42
Atomska teža
95,96
Masno število
96
Kategorija
Prehodne kovine
Barva
Siva
Radioaktivno
Ne
From the Greek word molybdo, lead
Kristalna struktura
Telesno centrirana kubična
Zgodovina
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.
Elektroni po lupinah
2, 8, 18, 13, 1
Razporeditev elektronov
[Kr] 4d5 5s1
Molybdenum is essential for plant foliage health
Fizikalne lastnosti
Faza snovi
Trdnina
Gostota
10,22 g/cm3
Tališče
2896,15 K | 2623 °C | 4753,4 °F
Vrelišče
4912,15 K | 4639 °C | 8382,2 °F
Talilna toplota
36 kJ/mol
Izparilna toplota
600 kJ/mol
Toplotna kapaciteta
0,251 J/g·K
Zastopanost v Zemljini skorji
0,00011%
Zastopanost v vesolju
5×10-7%
CAS številka
7439-98-7
PubChem CID številka
23932
Atomske lastnosti
Atomski polmer
139 pm
Kovalentni polmer
154 pm
Elektronegativnost
2,16 (Paulingova lestvica)
Ionizacijski potencial
7,0924 eV
Atomski volumen
9,4 cm3/mol
Toplotna prevodnost
1,38 W/cm·K
Oksidacijska stanja
-2, -1, 1, 2, 3, 4, 5, 6
Uporabe
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
Izotopi
Stabilni izotopi
92Mo, 94Mo, 95Mo, 96Mo, 97Mo, 98MoNestabilni izotopi
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