Berkelium

• Berkelium is a transuranic radioactive chemical element with the     Symbol: Bk, Electron configuration: Rn 5f9 7s2, Boiling point: 709.8 °C, Atomic number: 97, Atomic mass: (247) g.mol -1, Electronic configuration: [Rn] 5f9 7s2.
• Berkelium is an inner transition metal of the actinide series, located in period 7 of the periodic table, between curium and californium.
•  It is named after the city of Berkeley, California.
•  Berkelium is a silvery-white highly radioactive metal.
• Berkelium metal is attacked by oxygen, steam and acids, but not by alkalis.