Reactivity & Chemical Bonding
Chemical Behavior & Oxidation States
Uranium exhibits chemical reactivity characteristic of the actinide family, governed by an electronegativity of 1.38 and standard valence interactions.
Z = 92Actinide
Launch 3D Atom & Orbitals LabUranium
U
Standard Atomic Mass: 238.03 u
Period 7Group 3F-Block
Chemical Specimen/U
Concentric Electron Shells7 Energy Levels
n=1: 2e⁻→
n=2: 8e⁻→
n=3: 18e⁻→
n=4: 32e⁻→
n=5: 22e⁻→
n=6: 8e⁻→
n=7: 2e⁻
Scientific Monograph • Actinide
3D Atom SimulatorUranium (U) Scientific Profile
Uranium (U) is an element with atomic number 92, 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]5f³6d¹7s²) and periodic trends.
Interactive Virtual Labs Available for Uranium
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]5f³6d¹7s²
Electronegativity
1.38 Pauling
Year Discovered
Ancient Era
Orbital Shells
7 Principal Levels
Orbital Block
f-block orbital
Group / Period
G: 3 • P: 7
Technological Utility
Industrial & Energy Applications
Uranium is utilized in industrial fabrication, materials engineering, electronic manufacturing, and advanced laboratory research based on its specific thermodynamic properties.
Biological Role
Biomedical Profile & Toxicity
Uranium 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 Uranium are synthesized through stellar nucleosynthesis and supernovae r-processes. On Earth, Uranium is concentrated in specific ore deposits or synthesized in nuclear accelerators.
Frequently Asked Questions about Uranium
Q
What are the key physical and atomic properties of Uranium?
Uranium (U) has an atomic number of 92 and a standard atomic mass of 238.03 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 Uranium?
The ground-state electron configuration of Uranium is [Rn]5f³6d¹7s². Its 92 electrons are distributed across 7 principal energy levels (2, 8, 18, 32, 22, 8, 2).
Q
Why does Uranium exhibit an electron configuration exception?
Uranium 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 Uranium?
Uranium is utilized in industrial fabrication, materials engineering, electronic manufacturing, and advanced laboratory research based on its specific thermodynamic properties.