Question

which is the lighest metal​

Answer 1

Answer:

Lightest Elemental Metals

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. Two other metallic elements are less dense than water.

Answer 2

Answer:

lithium is the lighest metal.