Reactivity & Chemical Bonding
Chemical Behavior & Oxidation States
Zirconium exhibits chemical reactivity characteristic of the transition metal family, governed by an electronegativity of 1.33 and standard valence interactions.
Z = 40Transition Metal
Launch 3D Atom & Orbitals LabZirconium
Zr
Standard Atomic Mass: 91.224 u
Period 5Group 4D-Block
Chemical Specimen/Zr
Concentric Electron Shells5 Energy Levels
n=1: 2e⁻→
n=2: 8e⁻→
n=3: 18e⁻→
n=4: 10e⁻→
n=5: 2e⁻
Scientific Monograph • Transition Metal
3D Atom SimulatorZirconium (Zr) Scientific Profile
Zirconium (Zr) is an element with atomic number 40, classified as a transition metal. Positioned in Period 5, Group 4, and D-block, its chemical and physical profile is defined by its electron configuration ([Kr]4d²5s²) and periodic trends.
Interactive Virtual Labs Available for Zirconium
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
[Kr]4d²5s²
Electronegativity
1.33 Pauling
Year Discovered
1789
Orbital Shells
5 Principal Levels
Orbital Block
d-block orbital
Group / Period
G: 4 • P: 5
Technological Utility
Industrial & Energy Applications
Zirconium is utilized in industrial fabrication, materials engineering, electronic manufacturing, and advanced laboratory research based on its specific thermodynamic properties.
Biological Role
Biomedical Profile & Toxicity
Zirconium 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 Zirconium are synthesized through stellar nucleosynthesis and supernovae r-processes. On Earth, Zirconium is concentrated in specific ore deposits or synthesized in nuclear accelerators.
Frequently Asked Questions about Zirconium
Q
What are the key physical and atomic properties of Zirconium?
Zirconium (Zr) has an atomic number of 40 and a standard atomic mass of 91.224 u. It is positioned in Period 5, Group 4, in the D-block, and is classified within the Transition Metal category.
Q
What is the electron configuration of Zirconium?
The ground-state electron configuration of Zirconium is [Kr]4d²5s². Its 40 electrons are distributed across 5 principal energy levels (2, 8, 18, 10, 2).
Q
Why does Zirconium exhibit an electron configuration exception?
Zirconium 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 Zirconium?
Zirconium is utilized in industrial fabrication, materials engineering, electronic manufacturing, and advanced laboratory research based on its specific thermodynamic properties.