Question

which one is the lightest and less weight metal​

Answer 1

lithium

The lightest or least dense metal that is a pure element is lithium, which has a density of 0.534 g/cm3. This makes lithium nearly half as dense as water, so if lithium was not so reactive, a chunk of the metal would float on water.

Answer 2

heyy buddy

your required answer is lithium

hope this helps you

if it doesn't help you then plz forgive me