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s-Block

{count} elements in the s-Block block. These elements share the same outermost electron subshell.

13 elements

1 H Hydrogen 1.008 3 Li Lithium 7 4 Be Beryllium 9.012 11 Na Sodium 22.99 12 Mg Magnesium 24.305 19 K Potassium 39.098 20 Ca Calcium 40.08 37 Rb Rubidium 85.468 38 Sr Strontium 87.62 55 Cs Cesium 132.905 56 Ba Barium 137.33 87 Fr Francium 223.02 88 Ra Radium 226.025