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Platinum (Pt)
Atomic number: 78 · Category: transition metal · Group 10 · Period 6 · Phase: Solid
Platinum is a chemical element with symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, gray-white transition metal. Its name is derived from the Spanish term platina, which is literally translated into "little silver".
Atomic mass: 195.0849
Density: 21.45
Melting point: 2041.4 K
Boiling point: 4098 K
Appearance: silvery white
Source: Wikipedia
Block: d
Molar heat: 25.86
CPK color:#d0d0e0
Electronic structure
Electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s1 4f14 5d9
Configuration (semantic): [Xe] 4f14 5d9 6s1
Shells: 2, 8, 18, 32, 17, 1
Electronegativity (Pauling): 2.28
Electron affinity: 205.041
Ionization energies: 870, 1791
Periodic position
Group: 10
Period: 6
xpos: 10
ypos: 6
Spectral/Bohr images
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3D Model