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| Chapter 11: The Periodic Table |
| Activity Summaries |
Chemistry Principles |
Activity 1: Organizing a Store
Students organize a store by categorizing the different items that are contained in the store and discover what to do with new items that had not been accounted for.
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Activity 2: Elements and Their Properties
Students determine some of the physical and chemical properties of elements and how to use this information to organize elements into families.
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- Atoms
- Physical properties
- Chemical properties
- Conductivity
- Reactivity
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Activity 3: Atoms and Their Masses
Students show why they believe in atoms and how the elements of different atoms interact with each other in a single-displacement reaction.
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- Atomic mass
- Single-displacement reaction
- Law of Definite Proportions
- Quantitative analysis
- Measurements
- Mole
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Activity 4: Are Atoms Indivisible?
Students learn through experimentation the properties of electrons and how Rutherford’s experiment determined the location of the proton. In addition to this they find that the nucleus is very dense.
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- Cathode rays
- Properties of electrons
- Location of proton
- Nucleus
- Dalton’s Atomic Theory
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Activity 5: The Chemical Behavior of Atoms
Students learn that when energy is supplied to a hydrogen atom, the electron is excited to special levels and gives off light when it falls to lower levels. They also learn how to calculate the frequency of light waves and the energy of these waves.
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- Hydrogen’s line spectrum
- Frequency
- Wavelengths
- Energy of wavelengths
- Bohr’s Atomic Model
- Light waves
- Spectroscopic analysis
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Activity 6: Atoms with More than One Electron
Students discover that each element produces a unique line spectrum and that this ionization potential of the elements helps them to understand why the elements occupy certain positions on the periodic table.
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- Element line spectrum
- Ionization energy
- Electron configuration
- Period
- Ion
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Activity 7: How Electrons Determine Chemical Behavior
Students learn how to write the electron configuration for all of the elements. They also discover how the electron configuration can be used to show why families of elements behave the same with other compounds or elements. |
- Electron configuration
- Noble gases
- Valence electrons
- Chemical families
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