Group 1 contains
Alkali metals are Lithium, Sodium, Potassium, Rubidium, Cesium, Francium.
They are found
Alkali metals are never found in nature because they are unstable.
Lithium is used for psychiatric treatment even though doctors don't know exactly what it does just that it helps. Potassium can be manufactured into gunpowder. Rubidium, Cesium, and Francium are used in radio tubes and video equipment. Sodium is stored in oil.