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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).

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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
Group: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Block: S P D F
Phase: Solid Liquid Gas

List of chemical elements (13)

Cards Compact Table List
Ba Barium 56 137.328 Be Beryllium 4 9.01218 Cs Cesium 55 132.905 Fr Francium 87 223 H Hydrogen 1 1.0079 He Helium 2 4.0026 K Potassium 19 39.0983 Li Lithium 3 6.938 Mg Magnesium 12 24.304 Na Sodium 11 22.9898 Ra Radium 88 226 Rb Rubidium 37 85.4678 Sr Strontium 38 87.621