Block s elements

The s-block consists of groups 1 and 2 (the alkali metals and alkaline earth metals) plus hydrogen and helium. Elements here have their outermost electron in an s-orbital, making them highly reactive (except helium).

Browse by

Category: All elements Nonmetals Noble gases Alkali metals Alkaline earth metals Metalloids Post-transition metals Transition metals Lanthanides Actinides

Period: 1 2 3 4 5 6 7