yuánzì Chinese characters of the chemical elements

Dubnium Db · 105

dù

solid metal · period 7, group 5 · d-block

Anatomy

钅 radical 金 jīn
metal → solid metal
+ 杜 phonetic
from dubnium =
dù

Transliteration. The phonetic half approximates the international name. Dubnium

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 𬭊, traditional 𨧀, Taiwan 𨧀 dú.

1850187519001925195019752000antiquitytoday
鉨 ní
1970 · 曾提議 · Proposed, not adopted — Various for nielsbohrium, the Soviet name; 鉨 later went to nihonium
𫒢 hǎn 金 + 罕
1980 · 無機化學命名原則 · Principles of Inorganic Nomenclature (1980) — Chinese Chemical Society for hahnium, the American name
𨧀 dù 金 + 杜
1998 · 101–109號元素中文命名 · Names of elements 101–109 (1998) — CNCTST, after the 1997 IUPAC decision
  1. 1970 鉨 ní 曾提議 Proposed, not adopted, Various for nielsbohrium, the Soviet name; 鉨 later went to nihonium
  2. 1980 𫒢(金 + 罕) hǎn 無機化學命名原則 Principles of Inorganic Nomenclature, Chinese Chemical Society for hahnium, the American name
  3. 1998 𨧀(金 + 杜) dù 101–109號元素中文命名 Names of elements 101–109, CNCTST, after the 1997 IUPAC decision

Homophones

No other element shares this syllable.

Elsewhere

Japanese ドブニウム Korean 더브늄 Vietnamese dubni

Western name from Russian Дубна (Dubna). Compare all

Unicode

U+2CB4A in CJK Extension E (outside the Basic Multilingual Plane, so most fonts lack it; shown here from an outline)

Element discovered 1968/1970.