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 Se · atomic number

Think it. Then flip it. ahamoraTap to reveal Back to the cue
ScienceOne small aha
Your new aha34

Selenium has 34 protons in every atomic nucleus. Changing that number would make a different element. Source: Selenium ↗

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. 35the element Br · atomic numberRECALL
  2. 36the element Kr · atomic numberRECALL
  3. 37the element Rb · atomic numberRECALL