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Electrons loading

Defining characteristics of negatively charged subatomic particles and their role in atomic structure

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Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
  • Real World Application
    The Rockets’ Red Glare

    The Rockets’ Red Glare

    by CK-12 //basic
    Learn how fireworks work, including their components, how and why they explode, and what produces their different colors.
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  • Real World Application
    World’s Tiniest Computer

    World’s Tiniest Computer

    by CK-12 //basic
    Learn how microscopic computers of the future would use individual atoms and electrons to encode information; and consider how such tiny computers might change our world.
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    This indicates how strong in your memory this concept is
  • Real World Application
    What's in a Number?

    What's in a Number?

    by CK-12 //basic
    Learn how the atomic number of an element is related to its valence electrons and the properties of the element.
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  • Real World Application
    How Exciting!

    How Exciting!

    by CK-12 //basic
    Learn how fireflies use chemical reactions to produce light by chemoluminescence.
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    This indicates how strong in your memory this concept is
  • Real World Application
    In the Clouds

    In the Clouds

    by CK-12 //basic
    Learn about the quantum model of the atom and how it helps explain virtually every chemical change in the universe.
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    This indicates how strong in your memory this concept is
  • Real World Application
    Seeing with Electrons

    Seeing with Electrons

    by CK-12 //basic
    Learn the role of electrons in electron microscopes, which can create images of extremely small objects such as molecules.
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