97
Bk
247
Berkelium (Bk)
Element 97 · Period 7 · Actinide series
actinide
solid at room temp
f-block
radioactive
synthetic
About Berkelium
Synthetic radioactive element. Used only in research. Discovered at Berkeley.
Physical Properties
Atomic Mass
247 u
State at 25°C
Solid
Melting Point
986 °C
Density
14.79 g/cm³
Magnetism
Paramagnetic
Atomic Properties
Electron Configuration
[Rn] 5f⁹ 7s²
Electron Shells
2, 8, 18, 32, 27, 8, 2
Electronegativity
1.3
Atomic Radius
244 pm
Ionization Energy
601 kJ/mol
Oxidation States
+3, +4
Discovery & History
Discovered By
Glenn T. Seaborg
Discovery Year
1949
Named By
Glenn T. Seaborg
Name origin: Berkeley, California
Frequently Asked Questions
- Is Berkelium a metal, nonmetal, or metalloid?
- Berkelium is classified as a actinide.
- What state is Berkelium in at room temperature?
- Berkelium is a solid at standard room temperature (25°C).
- What is the atomic mass of Berkelium?
- Berkelium has an atomic mass of 247 atomic mass units (u).
- Who discovered Berkelium?
- Berkelium was discovered by Glenn T. Seaborg in 1949.
- Where is Berkelium on the periodic table?
- Berkelium is element number 97, located in period 7, part of the actinide series shown below the main table.