Library›The Elements›One card

A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

ScienceOne small ahaElement

Chlorine · chemical symbol

Think it. Then flip it. ahamoraTap to reveal Back to the cue
ScienceOne small aha
Your new ahaCl

Chlorine disinfects drinking water and, combined with sodium, forms ordinary table salt. Source: Chlorine ↗

ahamoraReference ↗

Keep the thread going

One answer is a beginning.

Share a little curiosity, or follow it into the full collection.

Flip the full deck →

More from The Elements

A few more worth knowing.

  1. 20This element is vital for nerve and muscle function, and its symbol K comes from the Latin kalium.RECALL
    Potassium

    Potassium is vital for nerve and muscle function, and its symbol K comes from the Latin kalium.

    Open this card ↗
  2. 21Potassium · chemical symbolRECALL
    K

    Potassium is vital for nerve and muscle function, and its symbol K comes from the Latin kalium.

    Open this card ↗
  3. 22This element builds bones and teeth and stands as the most abundant metal found in the human body.RECALL
    Calcium

    Calcium builds bones and teeth and stands as the most abundant metal found in the human body.

    Open this card ↗