Two soft metals that can be cut with a knife are sodium and potassium. These metals are part of the alkali metal group and are known for their softness and reactivity.
Key points about these soft metals:
Softness:
Sodium and potassium have relatively weak metallic bonding, making them easily deformable and thus soft.
Reactivity:
They are highly reactive with air and water, so they are typically stored under a liquid, like oil, to prevent them from reacting with atmospheric oxygen and moisture.
Group:
Both are part of Group 1 (alkali metals) in the periodic table.
Properties:
They are shiny, silvery-white, and can be easily cut with a knife due to their weak metallic bonding.