Beryllium vs Neodymium

PropertyBe BerylliumNd Neodymium
Atomic number460
SymbolBeNd
NameBerylliumNeodymium
Categoryalkaline-earth-metallanthanide
Standard Atomic Weight9.012183 u144.242 u
Period26
Group2N/A
Blockss
Phase at STPsolidsolid
Electron configuration[He]2s2[Xe]6s24f4
Oxidation states[0, 1, 2][0, 2, 3, 4]
Electronegativity (Pauling)1.571.14
Electron affinity-0.52 eV1.913 eV
Density1850 kg/m³7010 kg/m³
Melting point1286.85 °C1020.85 °C
Boiling point2470.85 °C3073.85 °C
Discovery year17971841