Ionic Compounds and Models — OCR GCSE Combined Science B J260
OCR GCSE Combined Science B · J260
Ionic Compounds and Models
What you need to know
Calculate the exact number of protons, neutrons, and electrons in specific atoms and ions using atomic and mass numbers from the Periodic Table.
Construct accurate dot and cross diagrams to model simple ionic substances.
Explain how the bulk macroscopic properties of ionic materials arise directly from the ionic bonds they contain.
Explain the high melting points of ionic compounds compared to other substances by applying principles of energy transfer and relative ionic attraction strength.
Evaluate the practical limitations of various representations and models for ions and ionic compounds, including dot and cross diagrams and 3D representations.
Translate structural chemical information fluidly between diagrammatic and numerical forms, converting between two-dimensional and three-dimensional representations.
