Reactivity & Chemical Bonding
Chemical Behavior & Oxidation States
Silicon exhibits chemical reactivity characteristic of the metalloid family, governed by an electronegativity of 1.9 and standard valence interactions.
Z = 14Metalloid
Launch 3D Atom & Orbitals LabSilicon
Si
Standard Atomic Mass: 28.086 u
Period 3Group 14P-Block
Chemical Specimen/Si
Concentric Electron Shells3 Energy Levels
n=1: 2e⁻→
n=2: 8e⁻→
n=3: 4e⁻
Scientific Monograph • Metalloid
3D Atom SimulatorSilicon (Si) Scientific Profile
Silicon (Si) is an element with atomic number 14, classified as a metalloid. Positioned in Period 3, Group 14, and P-block, its chemical and physical profile is defined by its electron configuration ([Ne]3s²3p²) and periodic trends.
Interactive Virtual Labs Available for Silicon
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
[Ne]3s²3p²
Electronegativity
1.9 Pauling
Year Discovered
1824
Orbital Shells
3 Principal Levels
Orbital Block
p-block orbital
Group / Period
G: 14 • P: 3
Technological Utility
Industrial & Energy Applications
Silicon is utilized in industrial fabrication, materials engineering, electronic manufacturing, and advanced laboratory research based on its specific thermodynamic properties.
Biological Role
Biomedical Profile & Toxicity
Silicon 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 Silicon are synthesized through stellar nucleosynthesis and supernovae r-processes. On Earth, Silicon is concentrated in specific ore deposits or synthesized in nuclear accelerators.
Frequently Asked Questions about Silicon
Q
What are the key physical and atomic properties of Silicon?
Silicon (Si) has an atomic number of 14 and a standard atomic mass of 28.086 u. It is positioned in Period 3, Group 14, in the P-block, and is classified within the Metalloid category.
Q
What is the electron configuration of Silicon?
The ground-state electron configuration of Silicon is [Ne]3s²3p². Its 14 electrons are distributed across 3 principal energy levels (2, 8, 4).
Q
Why does Silicon exhibit an electron configuration exception?
Silicon 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 Silicon?
Silicon is utilized in industrial fabrication, materials engineering, electronic manufacturing, and advanced laboratory research based on its specific thermodynamic properties.