yuánzì Chinese characters of the chemical elements
碘

Iodine I · 53

diǎn

solid non-metal · period 5, group 17 · p-block

Anatomy

石 radical 石 shí
stone → solid non-metal
+ 典 phonetic
from iodine =
碘 diǎn

Transliteration. The phonetic half approximates the international name. Iodine

History of the character

Every form found in the sources, from the first missionary chemistry books of the 1850s to the current standards. Hover a dot for the source. Simplified 碘, traditional 碘.

1850187519001925195019752000antiquitytoday
愛阿靛 ài'ādiàn
1868 · 格物入門 · Géwù Rùmén (1868) — W. A. P. Martin (丁韙良), Tongwen College three-character transliteration
碘 diǎn
1905 · 化學新教科書 · Huàxué Xīn Jiàokēshū (1905) — Dù Yàquán (杜亞泉), Commercial Press the Educational Association wrote 气 over 紫 “purple”, for the vapour
  1. 1868 愛阿靛 ài'ādiàn 格物入門 Géwù Rùmén, W. A. P. Martin (丁韙良), Tongwen College three-character transliteration
  2. 1905 碘 diǎn 化學新教科書 Huàxué Xīn Jiàokēshū, Dù Yàquán (杜亞泉), Commercial Press the Educational Association wrote 气 over 紫 “purple”, for the vapour

Homophones

No other element shares this syllable.

Elsewhere

Japanese ヨウ素 Korean 아이오딘 Vietnamese iod

Western name from Greek via French ἰώδης (iodes), “violet”. Compare all

Unicode

U+7898 in CJK Unified Ideographs