Library›Element Chemical Symbols›One card

A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

ScienceOne small ahaChemical symbol

Iridium · chemical symbol

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

Iridium has 77 protons in every atomic nucleus. Changing that number would make a different element. Source: Iridium ↗

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 Element Chemical Symbols

A few more worth knowing.

  1. 78Platinum · chemical symbolRECALL
    Pt

    Atomic number 78

    Open this card ↗
  2. 79Gold · chemical symbolRECALL
    Au

    Atomic number 79

    Open this card ↗
  3. 80Mercury · chemical symbolRECALL
    Hg

    Atomic number 80

    Open this card ↗