Library›Atomic Numbers and Elements›One card

A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

ScienceOne small ahaElement

This chemical element has atomic number 49.

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

Indium has 49 protons in every atomic nucleus. Changing that number would make a different element. Source: Indium ↗

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 Atomic Numbers and Elements

A few more worth knowing.

  1. 50This chemical element has atomic number 50.RECALL
    Tin

    Symbol Sn

    Open this card ↗
  2. 51This chemical element has atomic number 51.RECALL
    Antimony

    Symbol Sb

    Open this card ↗
  3. 52This chemical element has atomic number 52.RECALL
    Tellurium

    Symbol Te

    Open this card ↗