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Atoms and the Periodic Table

Atoms and the Periodic Table. Chapter Six: The Atom Chapter Seven: Elements and the Periodic Table Chapter Eight: Molecules and Compounds. Chapter Seven: Elements and the Periodic Table. 7.1 The Periodic Table of Elements 7.2 Properties of the Elements. Investigation 7A. The Periodic Table.

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Atoms and the Periodic Table

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  1. Atoms and the Periodic Table • Chapter Six: The Atom • Chapter Seven: Elements and the Periodic Table • Chapter Eight: Molecules and Compounds

  2. Chapter Seven: Elements and thePeriodic Table • 7.1 The Periodic Table of Elements • 7.2 Properties of the Elements

  3. Investigation 7A The Periodic Table • What is the periodic table and how many elements are there?

  4. 7.1 Physical and chemical properties • Characteristics that you can see through direct observation are called physical properties. • Physical properties include color, texture, density, brittleness, and state (solid, liquid, or gas). • Melting point, boiling point, and specific heat are also physical properties.

  5. 7.1 Physical and chemical properties • Properties that can only be observed when one substance changes into a different substance are called chemical properties. • Any change that transforms one substance into a different substance is called a chemical change.

  6. 7.1 The Periodic Table • The periodic tableorganizes the elements according to how they combine with other elements (chemical properties). • The periodic table is organized in order of increasing atomic number.

  7. 7.1 The Periodic Table • The periodic table is further divided into periods and groups. • Each horizontal row is called a period. • Each vertical column is called a group.

  8. 7.1 Energy levels and the periodic table • The periods (rows) of the periodic table correspond to the energy levels in the atom.

  9. 7.1 Energy levels and the periodic table

  10. 7.1 Energy levels and the periodic table

  11. History Connection Naming Elements Elements’ chemical symbols are confusing. It’s easy to see why O stands for oxygen, but why did they pick W for tungsten and K for potassium?

  12. Activity Name that Element • Unlike the abbreviations for a U.S. state, these symbol-abbreviations are not always obvious. • In this activity, you’ll make a set of flashcards for 30 elements and then play a game to see who in your class knows their elements.

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