The characteristics of Group 11 are as follows:
- Copper (), Silver (), and Gold (), Roentgenium () are the chemical elements of Group 11 in the periodic chart, according to modern IUPAC numbering.
- Group 11 elements are inert and corrosion-resistant metals that are also known as coinage metals due to their use in coin minting.
- The valence electronic configuration of Group 11 elements are with oxidation state by the loss of single electron.
- However, because of the relatively low values of the second and (for ) third ionization energies, higher oxidation states are known: is prevalent for and, to a lesser extent, , and for . Due to the half-filled orbital in neutral atoms, all three elements have large electron affinities.
- These group elements have a period of 4 to 7 and a valence shell of 4 to 7.
- The atomic number of Copper, Silver, Gold and Roentgenium are 29, 47, 79, and 111.
- The atomic radii of the Group 11 elements are:
Elements
Atomic radii (pm)
Copper 128
Silver 144
Gold 144
Roentgenium 114 (predicted)
The characteristics of Group 11 are as follows:
- Copper (), Silver (), and Gold (), Roentgenium () are the chemical elements of Group 11 in the periodic chart, according to modern IUPAC numbering.
- Group 11 elements are inert and corrosion-resistant metals that are also known as coinage metals due to their use in coin minting.
- The valence electronic configuration of Group 11 elements are with oxidation state by the loss of single electron.
- However, because of the relatively low values of the second and (for ) third ionization energies, higher oxidation states are known: is prevalent for and, to a lesser extent, , and for . Due to the half-filled orbital in neutral atoms, all three elements have large electron affinities.
- These group elements have a period of 4 to 7 and a valence shell of 4 to 7.
- The atomic number of Copper, Silver, Gold and Roentgenium are 29, 47, 79, and 111.
- The atomic radii of the Group 11 elements are:
Elements | Atomic radii (pm) |
Copper | 128 |
Silver | 144 |
Gold | 144 |
Roentgenium | 114 (predicted) |