Z = 107Transition Metal
Bh
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Bohrium

Bh

Standard Atomic Mass: 270 u
Period 7Group 7D-Block
Chemical Specimen/Bh
Bohrium specimen
Concentric Electron Shells7 Energy Levels
n=1: 2e⁻→
n=2: 8e⁻→
n=3: 18e⁻→
n=4: 32e⁻→
n=5: 32e⁻→
n=6: 13e⁻→
n=7: 2e⁻
Scientific Monograph • Transition Metal
3D Atom Simulator

Bohrium (Bh) Scientific Profile

Bohrium (Bh) is an element with atomic number 107, classified as a transition metal. Positioned in Period 7, Group 7, and D-block, its chemical and physical profile is defined by its electron configuration ([Rn]5f¹⁴6d⁵7s²) and periodic trends.

Interactive Virtual Labs Available for Bohrium

3D Orbitals & Valence Lab

Simulate concentric quantum energy levels, observe valence electron spins, and examine live atomic clouds in full 3D.

Launch 3D Atom Lab

Electronic Configuration Lab

Experiment with Aufbau subshell ordering, explore orbital occupancy, and analyze quantum configuration exceptions.

Launch Config Lab
Electron Config
[Rn]5f¹⁴6d⁵7s²
Electronegativity
n/a Pauling
Year Discovered
1981
Orbital Shells
7 Principal Levels
Orbital Block
d-block orbital
Group / Period
G: 7 • P: 7
Reactivity & Chemical Bonding

Chemical Behavior & Oxidation States

Bohrium exhibits chemical reactivity characteristic of the transition metal family, governed by an electronegativity of n/a and standard valence interactions.

Technological Utility

Industrial & Energy Applications

Bohrium is utilized in industrial fabrication, materials engineering, electronic manufacturing, and advanced laboratory research based on its specific thermodynamic properties.

Biological Role

Biomedical Profile & Toxicity

Bohrium 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 Bohrium are synthesized through stellar nucleosynthesis and supernovae r-processes. On Earth, Bohrium is concentrated in specific ore deposits or synthesized in nuclear accelerators.

Frequently Asked Questions about Bohrium

Q

What are the key physical and atomic properties of Bohrium?

Bohrium (Bh) has an atomic number of 107 and a standard atomic mass of 270 u. It is positioned in Period 7, Group 7, in the D-block, and is classified within the Transition Metal category.

Q

What is the electron configuration of Bohrium?

The ground-state electron configuration of Bohrium is [Rn]5f¹⁴6d⁵7s². Its 107 electrons are distributed across 7 principal energy levels (2, 8, 18, 32, 32, 13, 2).

Q

Why does Bohrium exhibit an electron configuration exception?

Bohrium 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 Bohrium?

Bohrium is utilized in industrial fabrication, materials engineering, electronic manufacturing, and advanced laboratory research based on its specific thermodynamic properties.