Berkelium is a transuranic element with the symbol Bk and atomic number 97. Here are some of its physical properties:

Appearance:

* Silvery-white, metallic solid.

Physical State:

* Solid at room temperature.

Density:

* 14.78 g/cm³

Melting Point:

* 1050 °C (1923 °F)

Boiling Point:

* 2607 °C (4725 °F)

Crystal Structure:

* Double hexagonal close-packed (dhcp)

Magnetic Properties:

* Paramagnetic

Other Properties:

* Radioactive: All isotopes of berkelium are radioactive.

* Reactive: Berkelium is a highly reactive metal.

* Ductile and Malleable: Berkelium is ductile and malleable, meaning it can be drawn into wires and hammered into thin sheets.

Important Note: Due to its radioactivity and scarcity, berkelium is primarily studied in research settings and has limited practical applications.