Molybdenum

42
Mo
95.54

molybdenum.gif (11185 bytes)
Example of molybdenum alloy.

Properties
Symbol Name Atomic Number Atomic Weight Group Number
Mo Molybdenum 42 95.54 6

Description

Standard State: solid at 298 K
Color: Gray metallic

Molybdenum was confused with graphic and lead ore.  The metal was prepared in an impure form in 1782. Molybdenum does not occur native, but is obtained principally from molybedenite, Wulfenite, and Powelite.  Molybdenum is also recovered as a by-product of copper and tungsten mining operations.  It is used in certain nickel-based alloys, such as the "Hastelloys" which are heat-resistant and corrosion-resistant to chemical solutions.  The metal is also used in nuclear energy applications and for missile and aircraft parts.