Lead
Symbol
Pb
Atomic Number
82
Atomic Weight
207.2
Element Classification
Discovered By
Known to the ancients.
Discovery Date
n/a (Unknown)
Name Origin
Anglo-Saxon: lead; symbol from Latin: plumbum.
Density (g/cc)
11.35
Melting Point (K)
600.65
Boiling Point (K)
2013
Appearance
Very soft, highly malleable and ductile, blue-white shiny metal
Atomic Radius (pm)
175
Atomic Volume (cc/mol)
18.3
Covalent Radius (pm)
147
Ionic Radius
84 (+4e) 120 (+2e)
Specific Heat
0.159
Fusion Heat (kJ/mol)
4.77
Evaporation Heat (kJ/mol)
177.8
Thermal Conductivity (@25°C W/m K)
35.3
Debye Temperature (K)
88.00
Pauling Negativity Number
1.8
First Ionizing Energy (kJ/mol)
715.2
Oxidation States
4, 2
Electronic Configuration
[Xe] 4f14 5d10 6s2 6p2
Lattice Structure
Face-Centered Cubic(FCC)
Lattice Constant
4.950
Lattice C/A Ratio
n/a
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