Group 11 of the Periodic Table
Group 11 of the periodic table has 4 elements: Copper, Silver, Gold and Roentgenium. Elements in a group have a similar last electron shell; the outer-shell pattern of all of them is ns¹, so they show similar chemical properties. Moving down a group, the number of shells and the atomic radius usually increase.
Element list
| Atomic no. | Symbol | Name | Atomic mass | Phase | Short configuration |
|---|---|---|---|---|---|
| 29 | Cu | Copper | 63.546 | Solid | [Ar] 3d¹⁰ 4s¹ |
| 47 | Ag | Silver | 107.87 | Solid | [Kr] 4d¹⁰ 5s¹ |
| 79 | Au | Gold | 196.97 | Solid | [Xe] 4f¹⁴ 5d¹⁰ 6s¹ |
| 111 | Rg | Roentgenium | 282 | Solid (a theoretical prediction) | [Rn] 5f¹⁴ 6d¹⁰ 7s¹ |
Frequently asked questions
What are the group 11 elements of the periodic table?
The group 11 elements are Copper (Cu), Silver (Ag), Gold (Au) and Roentgenium (Rg).
How many elements are in group 11?
Group 11 of the periodic table has 4 elements (excluding the lanthanides and actinides).