M1_4-student

M1_4-student - Unit 4 How do we predict properties? Have...

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Chemistry XXI Unit 4 How do we predict properties? Have you ever wondered: how an LED works? what makes some plastics soft or rigid? how you could design a good soap or detergent?
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Chemistry XXI The analysis of the types of atoms present in a substance allows us to make predictions about the physical properties of the compound. Substances Processes Unit Focus Focus for this Unit
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Chemistry XXI The central goal of this unit is to help you develop ways of thinking that can be used to predict the physical properties of molecular and ionic compounds, as well as metallic materials. Unit 4 How do we predict properties? M1. Analyzing Molecular Structure Predicting properties based on molecular structure . M2. Exploring Electronic Structure Predicting properties based on electron-configurations. M3. Characterizing Ionic Networks Predicting properties based on ion charge and size. .
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Chemistry XXI Unit 4 How do we predict properties? Module 1: Analyzing Molecular Structure Central goal: To explain and predict the physical properties of molecular compounds based on the nature of the intermolecular interactions among their molecules.
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Chemistry XXI The Challenge One of advantages of chemical thinking is that it allows us to explain and predict the physical and chemical properties of molecular substances based on their molecular structure. Modeling How do I predict it? How can use what we know to make such predictions? How can we take advantage of this way of thinking to design materials with the desired properties?
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Chemistry XXI The Power of Classification Predictions about the properties of substances are greatly facilitated by identifying the types of elements present in the system.
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Chemistry XXI Molecular Compounds For example, if the substance contains nonmetallic elements , it is likely to be molecular. Differences in electronegativities are such that nonmetallic elements combine forming individual molecules with polar covalent bonds .
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Chemistry XXI In order to make predictions about the physical properties of a molecular substance , we need to
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M1_4-student - Unit 4 How do we predict properties? Have...

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