The element you are describing is likely a metal from the alkali metals group, which is Group 1 of the periodic table. Alkali metals (such as lithium, sodium, potassium, rubidium, cesium, and francium) are known for being highly conductive, highly reactive, soft, and lustrous. They are characterized by their single valence electron, which makes them very reactive, particularly with water and halogens.
An element is highly conductive highly reactive soft and lustrous. The element most likely belongs to which group?
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