Tantalum
Atomic Number: 73
Name: Tantalum
Atomic symbol: Ta
Atomic Weight: 180.9479
Electron configuration: 1s22s22p63s23p63d104s24p64d105s25p64f145d36s2
Ionization energies: 761 kJ/mol
Pauling electronegativity: 1.5
Melting Point: 2996oC
Boiling Point: 5425oC
Ionic radius: 0.68 angstroms (+5)
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