SC15.PS.1

Science (2015) Grade(s): 09-12 - Physical Science

SC15.PS.1

Use the periodic table as a model to predict the relative properties and trends (e.g., reactivity of metals; types of bonds formed, including ionic, covalent, and polar covalent; numbers of bonds formed; reactions with oxygen) of main group elements based on the patterns of valence electrons in atoms.

Unpacked Content

Scientific and Engineering Practices

Developing and Using Models

Crosscutting Concepts

Patterns

Knowledge

Students know:
  • The periodic table orders elements horizontally by the number of protons in the atom's nucleus and places those with similar chemical properties in columns.
  • The repeating patterns of the periodic table reflect patterns of outer electron states.

Skills

Students are able to:
  • Identify and describe of the main group elements.
  • Describe how the number of protons determines an elements place on the periodic table.
  • Predict patterns of behavior of an element based on its position on the Periodic Table.
  • Predict number and charges of stable ions formed from atoms in a compound.
  • Determine the number and type of bonds formed.
  • Predict numbers of protons, neutrons, and electrons based on periodic table information.

Understanding

Students understand that:
  • Students will understand how to propose an argument and defend their claim on electromagnetic radiation safety.
  • Non-ionizing radiation, such as those emitted in electronics.cannot cause immediate damage, but does interact with the body to potentially cause indirect damage, following long-term exposure.
  • Ionizing radiation, such as X-rays and gamma rays, can be hazardous.

Vocabulary

  • Periodic table
  • Valence electrons
  • Protons
  • Neutrons
  • Electrons
  • Family
  • Period
  • Covalent
  • Ionic
  • Oxidation number
  • Cations
  • Anions
  • Ions
  • Main group elements
  • Metal
  • Non-metal
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