article: S-block
links: Francium Period 2 element Calcium Lithium Electron configuration Aluminium Boron Strontium Helium Chemical element Alkali metal Silicon Hydride Period 6 element Carbon Silver (color) Sodium Melting point Period 1 element Atomic number Hydrogen Potassium Alkaline earth metal Electron shell Period 7 element Beryllium Radium Hydroxide Electrical conductor Periodic table period Caesium Barium Period 5 element Period 3 element Periodic table group Period 4 element Amphoteric oxide Magnesium Rubidium Noble gas