Chromium vs Neodymium

PropertyCr ChromiumNd Neodymium
Atomic number2460
SymbolCrNd
NameChromiumNeodymium
Categorytransition-metallanthanide
Standard Atomic Weight51.9961 u144.242 u
Period46
Group6N/A
Blockss
Phase at STPsolidsolid
Electron configuration[Ar]3d54s1[Xe]6s24f4
Oxidation states[-4, -2, -1, 0, 1, 2, 3, 4, 5, 6][0, 2, 3, 4]
Electronegativity (Pauling)1.661.14
Electron affinity0.675 eV1.913 eV
Density7150 kg/m³7010 kg/m³
Melting point1906.85 °C1020.85 °C
Boiling point2670.85 °C3073.85 °C
Discovery year17971841