d wiとは 意味・読み方・使い方

語源

From Sanskrit द्वि (dvi, “two”).

接頭辞

dwi-

1. (chemistry, dated) A designation prefix for undiscovered chemical elements lying two periods under a known element in the periodic table. (For example, rhenium was called dwi-manganese before its discovery in 1925.)

使用する際の注意点

Current official IUPAC practice is to use a systematic element name based on the atomic number of the element as the provisional name, instead of being based on its position in the periodic table as these prefixes require.

参考

• eka-
• tri-
• Mendeleev's predicted elements
• di-
• bi-

アナグラム

• IWD, WDI, wid