Question

why is molybdenum malleable

Answer 1

As in the periodic table molybdenum comes in group 6 and period 5 and therefore it is a metal and so it is malleable.

Answer 2

10.22 at 20°C valence +2, +3, +4, +5, or +6. Molybdenum is a hard, malleable,ductile, high-melting, silver-white metal with a body-centered cubic crystalline structure. It is below chromium in Group 6 of the periodic table .Molybdenum resists corrosion at ordinary temperatures