Selenium
[Picture of Display box]
Contributor: Be the contributor for this element!
8bet the Display:
8bet the Contributor:
Back to the Periodic Table
| <Previous element-| | |-Onward to the next element!> |
听
Symbol:听Se
Atomic Number:听34
Atomic Mass: 78.971 u
Electron Configuration:听[Ar] 3d104s24p4听
Year Discovered: 1817
Discovered By: J枚ns Jacob Berzelius听