A rare element of the chromium group, occurring in nature in the minerals molybdenite and wulfenite, and when reduced obtained as a hard, silver-white, difficulty fusible metal. Symbol Mo. Atomic number 42. Atomic weight 95.94.
Symbol: Mo. Atomic mass:95.94 A silver-white metallic element, that with a high melting point, it is used to make an alloy with iron to make high speed cutting tools.
An alloying element used as a raw material for some classes of stainless steel. Molybdenum in the presence of chromium enhances the corrosion resistance of stainless steel.