Category: Chemical Elements

These elements have the highest density:
1. Osmium, 22.6 g/cc
2. Iridium, 22.4 g/cc
3. Platinum, 21.45 g/cc
4. Rhenium, 21.2 g/cc
5. Uranium, 20.2 g/cc

Bismuth is the strongest natural diamagnetic metal known. Diamagnetic materials, when exposed to a magnetic field, create a repulsive field in response. So, with some strong magnets, you can make Bismuth levitate.

And it forms fabulous crystals!

By Alchemist-hp (talk) (www.pse-mendelejew.de) (Own work) [FAL], via Wikimedia Commons