Gwenin: Clarity by Design

Atoms are more than particles; they are the grammar of matter. This lecture has guided you through:

• Elements: Pure substances defined by proton number, naturally occurring or synthetic
• Atoms: Structure, subatomic particles, and the role of protons, neutrons, and electrons
• Atomic Mass & Numbers: Using amu, mass number, and nuclide notation
• Electron Shells & Orbitals: Shell capacities, subshells, and the Aufbau principle
• Spectroscopic Notation: Electron configurations to predict reactivity and bonding
• Periodic Table: Organisation by atomic number, electron configuration, periods, groups, and trends
• Metals, Non-Metals, and Metalloids: Position, properties, and classification
• Atomic Size Trends: Across periods and down groups

Why This Matters:

By understanding atomic structure, electron arrangement, and periodic trends, you can predict chemical behaviour, explain bonding, and design materials. This lecture lays the foundation for all future chemistry learning, from reactions and compounds to spectroscopy and sensors.

Resources & Accessibility:

Modular, remixable content with live links for deepening study

Full PDF download with associated quiz.

Formatted for Word, email, and print compatibility via £1 per lecture on Payhip

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