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. Materials Science

    Nanowires made from silver are super stretchy

    When silver nanowires stretch slowly, atoms on their surface can spread to heal weak spots. The discovery could lead to more flexible electronics.

    By
  2. Physics

    How to chill an object by sending its heat into space

    Researchers have designed a device that can cool an object by radiating its energy into outer space. Think of it as a solar panel in reverse.

    By
  3. Tech

    Water sensor quickly detects algal poison

    A new sensor can detect poisons from harmful algae within minutes so that drinking-water plants can start timely treatments.

    By
  4. Chemistry

    The newest elements finally have names

    Nihonium? Tennessine? These aren’t body parts or medicines. They’re among the names just given to the four newest superheavy elements.

    By
  5. Chemistry

    Dwarf galaxy spawned heavy elements

    A study of nine stars in the dwarf galaxy Reticulum II found heavy elements. They had been produced after a violent stellar event sparked a chemical chain reaction.

    By
  6. Materials Science

    Long-sought subatomic particle ‘seen’ at last

    Physicists have finally caught a brief glimpse of massless subatomic particles that were first predicted to exist 85 years ago. It’s the elusive Weyl fermion.

    By
  7. Brain

    To protect kids, get the lead out!

    Lead poisons hundreds of thousands of children. In Chicago, experts show how the toxic metal hurts test performance in school.

    By