Berkelium is extremely rare, radioactive and unstable; berkelium is not for sale.
$185 × 10^9 per kilogram according to the CRC Handbook (ORNL) in 2004
Berkelium has two electrons on the outer shell.
Uranium and berkelium are radioactive elements.
Berkelium is a radioactive metal without odor.
Berkelium has the valences 3+ and 4+.
Berkelium is not a commercial material.
Berkelium is an artificial chemical element.
Berkelium is not a commercial product.
$185 × 10^9 per kilogram according to the CRC Handbook (ORNL) in 2004
berkelium is american
berkelium is synthetic
Berkelium is not corrosive.
Berkelium has a silvery appearance.
The total production of berkelium, around the world, during the last 60 years, was only some grams.
Berkelium has two electrons on the outer shell.
Any item has berkelium inside.
Berkelium is not a commercial product.