Oxygen – 3D Atomic Model (Moving Electrons)

Element Overview

Symbol: O Atomic no: 8 Group 16 (Chalcogen) Period 2 Non-metal

Name

Oxygen

Atomic mass

≈ 16.0 u

Electron config

1s² 2s² 2p⁴ → shells: 2, 6

Valence electrons

6 (in second shell)

State at 25°C

Gas (O₂ molecules)

Key roles

Respiration, combustion, oxides & acids

The model shows a simple Bohr-style picture:
• Nucleus in the centre
• 1st shell: 2 electrons
• 2nd shell: 6 electrons

You can:
• Drag with the mouse to rotate the atom in 3D
• Scroll to zoom in/out
• Watch electrons move along their orbits

Note: This is a teaching model. Real electrons do not move in neat circular orbits like planets; they exist in “clouds” or orbitals. This animation just helps you visualize shells and electron counts.