Elements
97

Bk

Berkelium

Berkelium (Bk) is a silvery colored radioactive metal that has the atomic number 97 in the periodic table. It is an Actinoid Metal with the symbol Bk.

Berkelium is a synthetic element that is created in nuclear testing labs due to its radioactivity. Berkelium was produced by Stanley Thompson, Glenn Seaborg, Kenneth Street and Albert Ghirorso working at UC Berkeley. It was discovered in 1949 by bombarding americium wth alpha particles using a cyclotron. It has no uses outside of scientific research. Since 1967 only one gram of Berkelium has been produced in the US. Berkelium whilst not having any uses has been combined with oxides and halogens. It is a solid metal at room temperature and it has a melting point of 986°c and a boiling point of 2900°c.

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FAQ's

What is the Melting Point for Berkelium?

Berkelium has a Melting Point of 1050°F, meaning at 1050°F it will turn to a liquid.

What is the Boiling Point for Berkelium?

Berkelium has a Boiling Point of °F, meaning at °F it will turn to a Gas.

What is the Electronegativity of Berkelium?

Berkelium's Electronegativty is 1.3. Electronegativity is a measure of how strongly atoms attract bonding electrons to themselves.

What is the Heat of Vaporization of Berkelium?

Berkelium has a Heat of Vaporization of kJ/mol.

Uses

It has no significant commercial applications.

Sources

Some compounds have been made and studied. Made by bombarding americium with alpha particles.

97
Protons
97
Electrons
150
Neutrons

Bk

Element Symbol
Bk
Atomic Weight
247
Atomic Number
97
State
Solid
Melting Point
Unknown
1050
°C
Boiling Point
Unknown
°C
Heat of Vaporization
Unknown
kJ/mol
Crystal Structure
Unknown
Thermoconductivity
0.1
Unknown
W/cmK
Shells
2,8,18,32,27,8,2
Group
Actinide
Period
7
Block
F Block
Orbitals
[Rn] 5f9 7s2
Coefficient of Thermal Expansion
--
Covalent Radius
--
Density at 293K
--
Electrical Conductivity
--
First Ionization Potential
6.23 V
Second Ionization Potential
--
Third Ionization Potential
--
Ionic Radius
--
Oxydation States
4,(3)
Lattice Parameter
--
Lattice Parameter 2
--
Lattice Parameter 3
--
Pronounced

BURK-li-em

Discovered by

G.T.Seaborg, S.G.Tompson, A.Ghiorso

Discovery date

1949

Orbital configuration
2,8,18,32,27,8,2

Download the Periodic Table

Explore Other Actinides

257
100

Fm

Fermium
244
94

Pu

Plutonium
259
102

No

Nobelium
232.038
90

Th

Thorium
258
101

Md

Mendelevium
237
93

Np

Neptunium
231.036
91

Pa

Protactinium
243
95

Am

Americium
252
99

Es

Einsteinium
238.029
92

U

Uranium
251
98

Cf

Californium
262
103

Lr

Lawrencium
247
96

Cm

Curium
227
89

Ac

Actinium
The actinide series contains 15 metallic elements from number 89 (actinium) to 103 (lawrencium). They are located in group 3 in the periodic table.
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