2D/3D Lewis Structure & VSEPR Visualizer

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Handles Any Charge

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Type formula + charge: SO4^2-, NH4+, NO3-, XeOF4, CO32-, PO4^3-, I3-

NEET / JEE Target Molecules Click to Load

⚡ Polyatomic Ions (With Charges)

🌀 Expanded Octet (sp³d, sp³d²)

🧪 Electron Deficient & Resonance

SO₄²⁻

Steric Number (Z) 4

Hybridization sp³

Electron Geometry Tetrahedral

Molecular Shape Tetrahedral

Bond Angle(s) 109.5°

Valence e⁻ Count (V) 32 e⁻

Central Atom Lone Pairs: 0 LP

Sigma (σ) + Pi (π) Bonds: 4 σ, 2 π

Polarity / Dipole Moment: Non-Polar (μ = 0)

Lone Pairs Formal Charges LP Lobes

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NEET Notes HUB

Step-By-Step Formal Charge & Octet Breakdown 1 Principal Structure

NCERT Class 11 Chapter 4 High-Yield Exam Tricks

Must-Know PYQ Topics

1. Steric Number Formula

Z = ½ [ V + M - C + A ]
V = central valence, M = monovalent atoms, C = cation charge, A = anion charge

2. Formal Charge (FC)

FC = V - L - ½(B)
V = valence e⁻, L = non-bonding e⁻, B = bonding e⁻

3. VSEPR Repulsion Order

LP-LP > LP-BP > BP-BP
Causes bond angle distortion (e.g. H₂O angle 104.5°)