Why is gold dense but soft?

This is determined by the physical properties of gold itself. Gold itself is very soft, and it is precisely because of its softness that gold has strong ductility! According to the test, an ounce of gold can extend the length of 50 miles!

Therefore, the gold jewelry we usually buy feels quite hard. If it is pure gold, softness will definitely cause a lot of inconvenience. So jewelry stores will mix some other metals to ensure the hardness of gold jewelry!