Table HI
SELECTED PROPERTIES OF THE ELEMENTS Cu, Ag, AuElement
Cu
Ag
Au/tonic
numlier29
47
79
Outer
electrons[Ar]M'V
[Kr]4A'
[Xe]4/'W/Itomif ...
radius,. j .j. Density mi I,
(nm)0,128 8.94 1356
0.144 10.50 1234
0.144 1932 1336
t.p.2855
2450
2980
1st iomtim
energy
IkJmor^1 )745
131
889
Healoj
atomisflfa
IkJmor^1 )339
286
354
* Metallic radius.