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NGSS Alignment - Lesson 4.6

Represent Bonding with Lewis Dot Diagrams

HS-PS1-1. Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.

Disciplinary Core Ideas

PS1.A: Structure and Properties of Matter

  • Substances are made from different types of atoms, which combine with one another in various ways. Atoms form molecules that range in size from two to thousands of atoms. (MS-PS1-1)
  • Each atom has a charged sub-structure consisting of a nucleus, which is made of protons and neutrons, surrounded by electrons. (HS-PS1-1)
Students apply what they have learned about protons, electrons, and energy levels to learn a new way of representing atoms and bonding with Lewis dot structures. Students use this method to represent covalent and ionic bonding.

Science and Engineering Practices

Developing and Using Models

  • Use a model to predict the relationships between systems or between components of a system. (HS-PS1-1)
Students use Lewis dot structures as another way to model atoms and the covalent and ionic bonds they form.

Crosscutting Concepts


  • Different patterns may be observed at each of the scales at which a system is studied and can provide evidence for causality in explanations of phenomena. (HS-PS1-1), (HS-PS1-3)
Students use Lewis dot structures as a new model and to review the role of protons, electrons, and energy levels in influencing the different ways atoms bond to form compounds.