The heaviest thing in the world is “Osmium”. Its atomic number is 76 and has a density of 22.59 g/cm3. It is used as fountain pen tips, electrical contacts, and other applications where extreme durability and hardness is required.
On the other hand the lightest thing in the world is “Aerogel”. It is also known as “solid smoke”. It is about 0.003 grams per cubic centimeter.
eAnswers Team
The heaviest thing in the world is “Osmium”. Its atomic number is 76 and has a density of 22.59 g/cm3. It is used as fountain pen tips, electrical contacts, and other applications where extreme durability and hardness is required.
On the other hand the lightest thing in the world is “Aerogel”. It is also known as “solid smoke”. It is about 0.003 grams per cubic centimeter.
Osmium is the heaviest thing and Aerogel is the lightest.