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ELEMENT 042 · TRANSITION METAL

Molybdenum · Mo Molybdenum

is used in high temperature alloys, steels and catalytic materials.

atomic number / Atomic number
42
atomic weight / Atomic mass
95.95 u
Family/Group
6
Period · Block / Period · Block
5 · d
Category / Category
transition metal · Transition metal
State / State
solid state
Electron configuration
[Kr]5s1 4d5
Oxidation states / Oxidation states
+6
Electronegativity / Electronegativity
2.16(Pauling)
Density / Density
10.2 g/cm³
Melting point / Melting point
2896 K
Boiling point / Boiling point
4912 K
Atomic radius / Atomic radius
209 pm(van der Waals)
First ionization energy
7.092 eV
Discovery year / Discovery
1778

attribute description and data source

properties taken from PubChem periodic table snapshot (2026-10-04). Atomic weights may be reference values ​​or representative isotope masses and cannot be considered exact constants for all samples; density, phase transition points, and phase states depend on temperature, pressure, and allotropes. The solidification of helium requires pressure. Some properties of radioactive and superheavy elements are predicted values, and missing items are marked as not included. Please check the original source and experimental conditions for precise calculations.

PubChem · Molybdenumoriginal information ↗

involves MolybdenumThe final phase of

current index collection 0strips. The reaction description is only used for knowledge query and material relationship understanding.

does not yet contain a reaction entry for this element; this does not mean that there are no known reactions for this element.