carbon-12

Questions

What does carbon-12 mean?

The most abundant of the two stable isotopes of carbon, 126C, having six protons and six neutrons; it is the standard for atomic weight and is used to define the mole.

How to pronounce carbon-12

1. Open the pronunciation page — Open the Speakur entry for “carbon-12”.
2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
3. Play the audio — Click Play to hear reference audio for “carbon-12”.
4. Repeat and practice — Say “carbon-12” aloud, matching stress and vowels until it feels natural.