Mass/volume is density so it’s 562g/72cm^3 so it’s roughly 7.805g per cubic centimeter
Explanation:
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The subatomic particles that acts like a mini-magnet is electron. Electrons are negatively charged sub atomic particles in an atom. The electron spin is a property of an electron that makes it behave like it's spinning; a spinning electron produces a magnetic field that makes it behave like a tiny magnet in an atom.