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Silver: The 47th Element
The Element Silver ( Ag Atom ): Structure, States, and Basic Information


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This article presents basic chemistry notes and information about silver, the 47th element of the periodic table.


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The Silver Atom

Chemical Symbol: Ag
Atomic Number: 47
Atomic Weight/Mass: 107.8682 amu
Standard State: Solid, at 298 Degrees Kelvin ( 77 degrees Fahrenheit )
CAS ID: 7440-22-4
Group Number: 11
Class: Metal, Transition
Melting Point of Silver: 961.93 °C
Boiling Point of Silver: 2,212.0 °C

Number of Protons & Electrons: 47
Number of Nuetrons: 61
Crystal Structure of Silver: Cubic ( face-centered )
Density @ 293 K: 10.5 g/cm3
Atomization: 284.09 kJ mol-1
Fusion: 11.3 kJ mol-1
Vaporization: 257.7 kJ mol-1
Molar volume: 10.335 cm3 mol-1
Electrical resistivity: 1.59 µ-ohms/cm
Thermal conductivity: 429.0 W / m / K
Mass magnetic susceptibility: -2.27e-9

Number of Energy Levels/Valence Shells: 5
Ground state electron configuration: 4d10 5s1

A creative rendition of the silver atom - The Silver Atom
Silver Atom - Larger View

First Energy Level: 2 Electrons/Protons
Second Energy Level: 8 Electrons/Protons
Third Energy Level: 18 Electrons/Protons
Fourth Energy Level: 18 Electrons/Protons
Fifth Energy Level: 1 Electron/Proton

Oxidation states of Silver: +1 +2 +3
Ion:
+1 pm 115.0
+2 pm 94.0
+3 pm 75.0

Silver Oxidation Reduction Reactions:

Ag+2 + e- ---- Ag+
Ag+ + e- ---- Ag
2Ag0 + H2O + 2e- ---- Ag2O + 2OH-
Ag2O + H2O + 2e- ---- 2Ag + 2OH-

Silver Nuclear Magnetic Resonance ( Nuclide 107 ):

Frequency: 4.046 MHz ( Ag+ )

Silver Incompatiblities:
Acetylene, ammonia, hydrogen peroxide, bromoazide, chlorine trifluoride, ethyleneimine, oxalic acid, tartaric acid

Interesting chemical equations involving silver:

Cu(s) + 2 AgNO3 (aq) ---- Cu(NO3)2 + 2 Ag (s)
2 Ag + S ---- Ag2S
Ag+(NO3)- + Ca2+Cl-2 ---- Ag+Cl- + Ca2+ (NO3) -2


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Page Last Modified: 05/17/15 04:44