Molibdeen
42
Mo
Groep
6
Periode
5
Blok
d
Protrone
Elektrone
Neutrone
42
42
54
Algemene Eienskappe
Atoom Nommer
42
Atoommassa
95,96
Massa Nommer
96
Kategorie
Oorgangsmetale
Kleur
Grys
Radioaktief
Nee
From the Greek word molybdo, lead
Kristalstruktuur
Ligaamsgesentreerde kubieke
Geskiendenis
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.
Elektrone per skil
2, 8, 18, 13, 1
Elektronkonfigurasie
[Kr] 4d5 5s1
Molybdenum is essential for plant foliage health
Fisiese Eienskappe
Fase
Soliede
Digtheid
10,22 g/cm3
Smeltpunt
2896,15 K | 2623 °C | 4753,4 °F
Kookpunt
4912,15 K | 4639 °C | 8382,2 °F
Heat of Fusion
36 kJ/mol
Heat of Vaporization
600 kJ/mol
Spesifieke Hitte Kapasiteit
0,251 J/g·K
Oorvloed in die aardkors
0,00011%
Oorvloed in die heelal
5×10-7%
CAS Nommer
7439-98-7
PubChem CID Nommer
23932
Atomiese Eienskappe
Atoom radius
139 pm
Kovalente Radius
154 pm
Elektronegatiewiteit
2,16 (Pauling scale)
Ionisasie potensiaal
7,0924 eV
Atoom volume
9,4 cm3/mol
Termiese geleidingsvermoë
1,38 W/cm·K
Oksidasiestate
-2, -1, 1, 2, 3, 4, 5, 6
Toepassings
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
Isotope
Stabiele Isotope
92Mo, 94Mo, 95Mo, 96Mo, 97Mo, 98MoOnstabiele Isotope
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