- They are naturally occurring elements with an electropositive character. Alkali metals, alkaline earth metals, transition metals, lanthanides, and actinides are among the metal groups present in the periodic table.
- Metals are ductile in nature which means wires can be made out of them.
- They are malleable in nature i.e. they can be converted into thin sheets
- They are excellent heat and electrical conductors.
- They are lustrous i.e. have a shiny finish.
- They are capable of tolerating heavyweights i.e. have good tensile strength.
- They have a resonant quality to them. It means they generate a sound when we strike them.
- They are hard. It means they are difficult to cut. Except few are soft in nature.
- With the presence of only one valence electron, alkali metals have a large atomic size. As a result, the metallic bonds between the atoms are weak.
- Alkali metals are soft and can be sliced with a knife due to the presence of this weak metallic bonding.
- Out of all the stable elements, Cesium has the biggest atomic radius and the lowest electronegativity. It is a metallic element with a silvery-gold color.
- It is a really soft metal. At or near room temperature, cesium is one of four elements that exist in liquid form. It is an alkaline element in the periodic table.
- It is immediately attacked by air and explodes when it comes into contact with water.
Therefore, Cesium is the softest metal.