| Element (Atomic number) | Symbol and Electronic configuration |
| Lithium $(3)$ | $Li: [He] 2s^{1}$ |
| Sodium $(11)$ | $Na: [Ne] 3s^{1}$ |
| Potassium $(19)$ | $K: [Ar] 4s^{1}$ |
| Rubidium $(37)$ | $Rb: [Kr] 5s^{1}$ |
| Cesium $(55)$ | $Cs: [Xe] 6s^{1}$ |
| Francium $(87)$ | $Fr: [Rn] 7s^{1}$ |
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| Column $-I$ | Column $-II$ |
| $(a).$ Spodumene | $(p).$ $K$ |
| $(b).$ Borax | $(q).$ $Na$ |
| $(c).$ Sylvine | $(r).$ $Li$ |
| $(d).$ Chile saltpetre | $(s).$ $Ca$ |
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