Word Pronunciation & Dictionary

thorium-228

Word Rarity Rare

Frequency: Zipf frequency 2.71 in modern English

Syllables: tho-ri-um-228
IPA

12

Scrabble Score

7

Letters

4

Syllables

7

Unique Chars

Meaning

noun

A radioactive isotope of thorium, 22890Th, having a half-life of 1.9 years; it occurs naturally in small amounts, as member of the thorium-232 decay chain.

Uncountable

Usage

Uncountable

Synonyms

radiothorium

Questions

What does thorium-228 mean?: A radioactive isotope of thorium, 22890Th, having a half-life of 1.9 years; it occurs naturally in small amounts, as member of the thorium-232 decay chain.

How to pronounce thorium-228

Open the pronunciation page — Open the Speakur entry for “thorium-228”.
Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
Play the audio — Click Play to hear reference audio for “thorium-228”.
Repeat and practice — Say “thorium-228” aloud, matching stress and vowels until it feels natural.