Reactivity & Chemical Bonding
Chemical Behavior & Oxidation States
Scandium exhibits chemical reactivity characteristic of the transition metal family, governed by an electronegativity of 1.36 and standard valence interactions.
Z = 21Transition Metal
Launch 3D Atom & Orbitals LabScandium
Sc
Standard Atomic Mass: 44.956 u
Period 4Group 3D-Block
Chemical Specimen/Sc
Concentric Electron Shells4 Energy Levels
n=1: 2e⁻→
n=2: 8e⁻→
n=3: 9e⁻→
n=4: 2e⁻
Scientific Monograph • Transition Metal
3D Atom SimulatorScandium (Sc) Scientific Profile
Scandium (Sc) is an element with atomic number 21, classified as a transition metal. Positioned in Period 4, Group 3, and D-block, its chemical and physical profile is defined by its electron configuration ([Ar]3d¹4s²) and periodic trends.
Interactive Virtual Labs Available for Scandium
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
[Ar]3d¹4s²
Electronegativity
1.36 Pauling
Year Discovered
1879
Orbital Shells
4 Principal Levels
Orbital Block
d-block orbital
Group / Period
G: 3 • P: 4
Technological Utility
Industrial & Energy Applications
Scandium is utilized in industrial fabrication, materials engineering, electronic manufacturing, and advanced laboratory research based on its specific thermodynamic properties.
Biological Role
Biomedical Profile & Toxicity
Scandium 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 Scandium are synthesized through stellar nucleosynthesis and supernovae r-processes. On Earth, Scandium is concentrated in specific ore deposits or synthesized in nuclear accelerators.
Frequently Asked Questions about Scandium
Q
What are the key physical and atomic properties of Scandium?
Scandium (Sc) has an atomic number of 21 and a standard atomic mass of 44.956 u. It is positioned in Period 4, Group 3, in the D-block, and is classified within the Transition Metal category.
Q
What is the electron configuration of Scandium?
The ground-state electron configuration of Scandium is [Ar]3d¹4s². Its 21 electrons are distributed across 4 principal energy levels (2, 8, 9, 2).
Q
Why does Scandium exhibit an electron configuration exception?
Scandium 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 Scandium?
Scandium is utilized in industrial fabrication, materials engineering, electronic manufacturing, and advanced laboratory research based on its specific thermodynamic properties.