Reactivity & Chemical Bonding
Chemical Behavior & Oxidation States
Berkelium exhibits chemical reactivity characteristic of the actinide family, governed by an electronegativity of 1.3 and standard valence interactions.
Z = 97Actinide
Launch 3D Atom & Orbitals LabBerkelium
Bk
Standard Atomic Mass: 247 u
Period 7Group 3F-Block
Chemical Specimen/Bk
Concentric Electron Shells7 Energy Levels
n=1: 2e⁻→
n=2: 8e⁻→
n=3: 18e⁻→
n=4: 32e⁻→
n=5: 27e⁻→
n=6: 8e⁻→
n=7: 2e⁻
Scientific Monograph • Actinide
3D Atom SimulatorBerkelium (Bk) Scientific Profile
Berkelium (Bk) is an element with atomic number 97, classified as a actinide. Positioned in Period 7, Group 3, and F-block, its chemical and physical profile is defined by its electron configuration ([Rn]5f⁹7s²) and periodic trends.
Interactive Virtual Labs Available for Berkelium
3D Orbitals & Valence Lab
Simulate concentric quantum energy levels, observe valence electron spins, and examine live atomic clouds in full 3D.
Electronic Configuration Lab
Experiment with Aufbau subshell ordering, explore orbital occupancy, and analyze quantum configuration exceptions.
Electron Config
[Rn]5f⁹7s²
Electronegativity
1.3 Pauling
Year Discovered
1949
Orbital Shells
7 Principal Levels
Orbital Block
f-block orbital
Group / Period
G: 3 • P: 7
Technological Utility
Industrial & Energy Applications
Berkelium is utilized in industrial fabrication, materials engineering, electronic manufacturing, and advanced laboratory research based on its specific thermodynamic properties.
Biological Role
Biomedical Profile & Toxicity
Berkelium does not play a prominent biological role in human biochemistry, existing primarily as a trace element or mineral component in natural ecosystems.
Geochemistry & Abundance
Cosmic & Terrestrial Occurrence
Elements like Berkelium are synthesized through stellar nucleosynthesis and supernovae r-processes. On Earth, Berkelium is concentrated in specific ore deposits or synthesized in nuclear accelerators.
Frequently Asked Questions about Berkelium
Q
What are the key physical and atomic properties of Berkelium?
Berkelium (Bk) has an atomic number of 97 and a standard atomic mass of 247 u. It is positioned in Period 7, Group 3, in the F-block, and is classified within the Actinide category.
Q
What is the electron configuration of Berkelium?
The ground-state electron configuration of Berkelium is [Rn]5f⁹7s². Its 97 electrons are distributed across 7 principal energy levels (2, 8, 18, 32, 27, 8, 2).
Q
Why does Berkelium exhibit an electron configuration exception?
Berkelium follows standard Aufbau principle orbital filling. Transition metals and heavy elements optimize their shell filling based on subshell exchange energy and electrostatic stability.
Q
What are the primary commercial and laboratory uses of Berkelium?
Berkelium is utilized in industrial fabrication, materials engineering, electronic manufacturing, and advanced laboratory research based on its specific thermodynamic properties.