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Tantalum (Ta)
Atomic number: 73 · Category: transition metal · Group 5 · Period 6 · Phase: Solid
Tantalum is a chemical element with symbol Ta and atomic number 73. Previously known as tantalium, its name comes from Tantalus, an antihero from Greek mythology. Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant.
Atomic mass: 180.947882
Density: 16.69
Melting point: 3290 K
Boiling point: 5731 K
Appearance: gray blue
Source: Wikipedia
Block: d
Molar heat: 25.36
CPK color:#4da6ff
Electronic structure
Electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d3
Configuration (semantic): [Xe] 4f14 5d3 6s2
Shells: 2, 8, 18, 32, 11, 2
Electronegativity (Pauling): 1.5
Electron affinity: 31
Ionization energies: 761, 1500
Periodic position
Group: 5
Period: 6
xpos: 5
ypos: 6
Spectral/Bohr images
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3D Model