Molybdeen
42
Mo
Groep
6
Periode
5
Blok
d
Protonen
Elektronen
Neutronen
42
42
54
Algemene Eigenschappen
Atoomnummer
42
Atomair gewicht
95,96
Massa Getal
96
Categorie
Overgangsmetalen
Kleur
Grijs
Radioactief
Nee
Van het Griekse woord molybdo, lood
Kristalstructuur
Ruimtelijk-gecentreerde Kubus
Historie
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.
Eletronen per schil
2, 8, 18, 13, 1
Electronconfiguratie
[Kr] 4d5 5s1
Molybdenum is essential for plant foliage health
Fysieke Eigenschappen
Fase
Vast
Dichtheid
10,22 g/cm3
Smeltpunt
2896,15 K | 2623 °C | 4753,4 °F
Kookpunt
4912,15 K | 4639 °C | 8382,2 °F
Fusiewarmte
36 kJ/mol
Verdampingswarmte
600 kJ/mol
Specifieke Warmtecapaciteit
0,251 J/g·K
Overvloedig aanwezig in de aardkorst
0,00011%
Overvloedig aanwezig in het universum
5×10-7%
CAS-nummer
7439-98-7
PubChem CID nummer
23932
Atoomeigenschappen
Atoomstraal
139 pm
Covalentiestraal
154 pm
Electronegativiteit
2,16 (Pauling schaal)
Ionisatiepotentiaal
7,0924 eV
Atoomvolume
9,4 cm3/mol
Thermische geleiding
1,38 W/cm·K
Oxidatietoestanden
-2, -1, 1, 2, 3, 4, 5, 6
Toepassingen
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
Isotopen
Stabiele isotopen
92Mo, 94Mo, 95Mo, 96Mo, 97Mo, 98MoInstabiele isotopen
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