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Periodic Table Challenge
Submitted by: Rebecca G.
Recommended Grade Level(s):
Appropriate for: Middle school
Teaching Topics & Concepts:
Chemistry, periodic table of elements.
Standards:
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. [Clarification Statement: Examples of properties that could be predicted from patterns
could include reactivity of metals, types of bonds formed, numbers of bonds formed, and reactions with oxygen.] [Assessment
Boundary: Assessment is limited to main group elements. Assessment does not include quantitative understanding of ionization
energy beyond relative trends.]
HS-PS1-2. Construct and revise an explanation for the outcome of a simple chemical reaction based on the outermost
electron states of atoms, trends in the periodic table, and knowledge of the patterns of chemical properties. [Clarification
Statement: Examples of chemical reactions could include the reaction of sodium and chlorine, of carbon and oxygen, or of
carbon and hydrogen.] [Assessment Boundary: Assessment is limited to chemical reactions involving main group elements
and combustion reactions.]
MS-PS1-1. Develop models to describe the atomic composition of simple molecules and extended structures.
[Clarification Statement: Emphasis is on developing models of molecules that vary in complexity. Examples of simple molecules
could include ammonia and methanol. Examples of extended structures could include sodium chloride or diamonds. Examples
of molecular-level models could include drawings, 3D ball and stick structures, or computer representations showing different
molecules with different types of atoms.] [Assessment Boundary: Assessment does not include valence electrons and bonding
energy, discussing the ionic nature of subunits of complex structures, or a complete description of all individual atoms in a
complex molecule or extended structure is not required.]
Time Requirements:
Activity Time: 40–60 minutes
Materials:
• Periodic Table of Elements
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