Before we dive into the notes, it is essential to understand why this chapter holds such weight in the curriculum.
(Hyperlink this button/text to your PDF file or a trusted download page) Before we dive into the notes, it is
| | Content in PDF | | :--- | :--- | | Rutherford’s Model | Diagram of α-particle scattering + calculations of nucleus size. | | Bohr’s Postulates | Table comparing merits & demerits. | | Quantum Numbers | Flowchart explaining "n" (Shell) → "l" (Subshell) → "m" (Orbital). | | Electronic Configuration | Exception cases: Cr ([Ar] 4s¹ 3d⁵) & Cu ([Ar] 4s¹ 3d¹⁰). | | Revision Mind Map | Last-page summary for last-minute revision before exams. | | | Quantum Numbers | Flowchart explaining "n"
🔍 : Before downloading, scan the PDF for: | 🔍 : Before downloading, scan the PDF
"Plum Pudding" model; positive charge is spread like pudding with electrons as plums. (Failed to explain stability). Rutherford’s Model: Based on the -particle scattering experiment. Discovered the Nucleus .