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.

More Stories in HS-PS1-1

  1. Chemistry

    Scientists Say: Element

    The number of neutrons and electrons can vary in atoms of the same element. The number of protons alone sets each of these substances apart.

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  2. Physics

    Scientists Say: Tauonium

    No protons, neutrons or electrons. And yet, based on what scientists know about fundamental particles, this variety of atom just might exist.

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  3. Chemistry

    Experiment: Blow the best homemade bubbles

    What’s the best recipe for blowing the most impressive bubbles? Let’s find out.

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  4. Chemistry

    A new map of Africa sheds light on the origins of enslaved people

    Mapping the element strontium across the continent is helping track down the birthplaces of enslaved Africans brought to the Americas.

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  5. Earth

    Let’s learn about the carbon cycle

    The total amount of carbon on Earth doesn’t change. But what form those carbon atoms take is constantly changing.

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  6. Math

    His love of math led to a career in quantum computing

    James Whitfield began his career when quantum computing was still in its infancy. Today, he’s helping to make it more accessible to educators, researchers and others.

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  7. Tech

    Artificial intelligence helped design a new type of battery

    Supercomputing and AI cut the early discovery steps from decades to just 80 hours. The process led to a new solid electrolyte.

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  8. Climate

    Chemists make device to destroy planet-warming methane pollution

    It can slash diffuse sources of this extremely potent greenhouse gas, such as from livestock barns and other sites.

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  9. Environment

    New ultrathin materials can pull climate-warming CO2 from the air

    To slow global warming, we’ll need help from CO2-trapping materials. Enter MXenes. They’re strong and reactive — and they love to eat up CO2.

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