Speakur

Word Pronunciation & Dictionary

Questions

What does helium-4 mean?
The normal isotope of helium, 42He, that has two neutrons.

How to pronounce helium-4

  1. Open the pronunciation page — Open the Speakur entry for “helium-4”.
  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 “helium-4”.
  4. Repeat and practice — Say “helium-4” aloud, matching stress and vowels until it feels natural.