unit one lesson 0ne Session #1.pptx

Date: / / Grade 12 Basics of Chemistry An Introduction to Key Concepts RADWA ADNAN  The Modern Periodic Table Structure: Rows (Periods) and Columns (Groups). RADWA ADNAN  Quan...

Date: / / Grade 12 Basics of Chemistry An Introduction to Key Concepts RADWA ADNAN  The Modern Periodic Table Structure: Rows (Periods) and Columns (Groups). RADWA ADNAN  Quantum Numbers Principal Quantum Number (n): Indicates the main energy level. Subsidiary Quantum Number (l): Indicates the shape of the orbital. Magnetic Quantum Number (m): Indicates the orientation of the orbital. Spin Quantum Number (s): Indicates the spin of the electron. RADWA ADNAN  Electron Configuration Rules: Aufbau principle, Hund’s rule. RADWA ADNAN RADWA ADNAN  Ionization Potential Energy required to remove an electron from an atom. Increases across a period, decreases down a group. RADWA ADNAN  Oxidation Number Definition: the electric charge (positive or negative ) Which is carried by ion or atom in compound RADWA ADNAN