Properties

CAS Number7440-00-8
PubChem CID23934
Atomic Radius181
Atomic Volume20.6
Atomic Weight144.242
Blockf
Boiling Point3,074
Bulk Modulus
CategoryLanthanides
Crystal StructureSimple Hexagonal
ColorSilver
Covalent Radius201
Density7.007
Electrical Resistivity
Electron Configuration[Xe] 4f4 6s2
Electrons per shell2, 8, 18, 22, 8, 2
Electronegativity1.14
Electrons60
Groupna
Heat of Fusion7.1
Heat of Vaporization285
Ionization Potential5.525
Magnetic Ordering
Magnetic Susceptibility
Mass144.242
Mass Number60
Melting Point1,024
NameNeodymium
Neutrons84
Atomic Number144
Oxidation States2, 3
Period6
PhaseSolid
Poisson Ratio
Protons60
Shear Modulus
Specific Heat Capacity0.19
SymbolNd
Thermal Conductivity0.165
Van der Waals radius
Young's Modulus
Abundance
Abundance in Earth's crust0.0033%
Abundance in Universe1×10-6%
Nd Neodymium 60 144.242 6 f 60 1016.0 3127.0 [Xe] 4f4 6s2 2 8 18 22 8 2 7.0 0.0033% Silver Hexagonal 1.1 {"1":"533.1","2":"1040","3":"2130","4":"3900"} 533 50 3 1.82 20.6 10.88 283.68 0.19 16.5 19.2K 0 Solid, Paramagnetic, Conductor, Lanthanide, Stable, Natural nee-eh-DIM-i-em Silvery-white, rare-earth metal that oxidizes easily in air. Used in making artificial ruby for lasers. Also in ceramics and for a special lens with praseodymium. Also to produce bright purple glass and special glass that filters infrared radiation. Makes up 18% of Mich metal, which is used in making steel. Made from electrolysis of its halide salts, which are made from monazite sand. PBbl-3_R3mk Neodymium
Silver has been used for thousands of years for ornaments and utensils, for trade, and as the basis for many monetary systems.

Its value as a precious metal was long considered second only to gold.

Slag dumps in Asia Minor and on islands in the Aegean Sea indicate that man learned to separate silver from lead as early as 3000 BC. The Latin word for silver is argentum 60 1885 Carl F. Auer von Welsbach Austria From the Greek words "neos didymos" meaning "new twin"

Isotopes of Silver

Standard Atomic Weight

144.242(3)

Stable Isotopes

142Nd 143Nd 144Nd 145Nd 146Nd 148Nd 150Nd

Unstable Isotopes

124Nd 125Nd 126Nd 127Nd 128Nd 129Nd 130Nd 131Nd 132Nd 133Nd 134Nd 135Nd 136Nd 137Nd 138Nd 139Nd 140Nd 141Nd 147Nd 149Nd 151Nd 152Nd 153Nd 154Nd 155Nd 156Nd 157Nd 158Nd 159Nd 160Nd 161Nd

Silver is considered to be non-toxic
In ancient Egypt and Medieval Europe, silver was often more valuable than gold
Silver has long been valued as a precious metal, and is used as an investment, to make ornaments, jewelry, high-value tableware, utensils, and currency coins.

It is also used in electrical contacts and conductors, in mirrors and in catalysis of chemical reactions.

Its compounds are used in photographic film, and dilute silver nitrate solutions and other silver compounds are used as disinfectants and microbiocides