Bohrium

Symbol: Bh

Category(transition metal)

Density at 25°C: solid:  n/a

This artificially created element typically has stable isotopes of about 1 minute. This instability makes it a challenge to study. Named in honour of Niels Bohr, one of the founders of modern atomic physics.

The interesting feature about this element is more about how it got named. One of the concerns is that it could be confused with boron.