Library›Chemical Symbols and Atomic Numbers›One card

A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

ScienceOne small ahaAtomic number

the element La · atomic number

Think it. Then flip it. ahamoraTap to reveal Back to the cue
ScienceOne small aha
Your new aha57

Lanthanum has 57 protons in every atomic nucleus. Changing that number would make a different element. Source: Lanthanum ↗

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 Chemical Symbols and Atomic Numbers

A few more worth knowing.

  1. 58the element Ce · atomic numberRECALL
  2. 59the element Pr · atomic numberRECALL
    59

    Praseodymium

    Open this card ↗
  3. 60the element Nd · atomic numberRECALL