S-block (original) (raw)
| Elemental Groups |
|---|
| d-block f-block g-block p-block s-block Subgroups 1A (alkali metals) 2A (alkaline earth metals) |
Groups 1A (alkali metals) and 2A (alkaline earth metals) of the periodic table, Hydrogen, and helium make up the S-block (for sharp) elements. These elements have noble gas structures.
An s orbital can hold a maximum of 2 electrons.
See Electron shell, Orbitals