Electrons and bonding OCR AS Chemistry

This bundle is ideal for classroom or home learning and covers electron configuration, ionic bonding, covalent bonding and shapes of molecules. It includes all of the OCR A level chemistry specification section 2.2.1 and part of 2.1.2.
Each topic includes a fully interactive PowerPoint including starter, group activities, questions and plenary along with a worksheet. Answers to all exercises are provided. Three of the resources include a PowerPoint quiz.

This bundle is part of a series covering the OCR AS Chemistry specification and relates to the following sections:
Module 2 – Foundations in chemistry / Part 2 – Electrons, bonding and structure
2.2.1 Electron structure and part of 2.2.2 – Bonding and structure

Content covered:
Electron configuration – shells, sub-shells and orbitals
• Energy levels
• Main shells, sub-shells and orbitals
• Rules for filling orbitals
• Electron configurations of atoms and ions
• Deducing electron configuration using the Periodic Table
• Relationship of electron configuration to the Periodic Table
Ionic bonding
• Bonding and the Periodic Table
• Predicting ionic formulae
• Definition of ionic bonding
• Dot-and-cross diagrams – some of them animated
• Half equations
• Giant ionic lattice
• Physical properties of ionic compounds including
o melting point
o electrical conductivity
o solubility in polar and non-polar solvents
Covalent bonding
• Definition of a covalent bond
• Single, double and triple covalent bonds
• Lone pairs
• How to construct dot-and-cross diagrams
• Dative covalent or coordinate bonds
• The Octet Rule and exceptions
• Average bond enthalpies
Shapes of molecules and ions
• Electron pair repulsion theory (VSEPR)
• Effect of lone pairs on shape
• Model answer to exam question
• How to draw simple shapes in 3D
• Bond angles

Links
Next lesson – free resource: Topic 18 – Electronegativity and polarity (in preparation)