21st October 2019

quora
17

What is the lightest metal in the world?

Lightest Elemental Metal. The lightest or least dense metal that is a pure element is lithium, which has a density of 0.534 g/cm 3. 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.

What is the strongest and lightest material?

Case in point: graphene. Graphene, which was heretofore, the strongest material known to man, is made from an extremely thin sheet of carbon atoms arranged in two dimensions.

Which is the lightest material in the world?

Lightest Material On Earth: Carbon Aerogel Sets New Record. Chinese scientists have created the world's lightest substance — a material so insubstantial it can perch on the petals of a delicate flower without crushing them (see photo above).
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