Arfwedson, JA

Japanese: Arfwedson,J.A.(英語表記)ArfwedsonJA
Arfwedson, JA

…Periodic table Element symbol = Li Atomic number = 3 Atomic weight = 6.941 ± 2 Abundance in the earth's crust = 20 ppm (31st place) Stable nuclide abundance ratio 6 Li = 7.42%, 7 Li = 92.58% Melting point = 179 ° C Boiling point = 1317 ° C Specific gravity = 0.534 Electron configuration = [He] 2s 1 Main oxidation number = I One of the alkali metal elements belonging to the IA group of the periodic table. It was discovered in petalite by Johan August Arfwedson (1792-1841) of Sweden in 1817. It was named after the Greek word lithos (stone) because it was found in the mineral kingdom, whereas the same alkali metals sodium and potassium exist in the animal and plant kingdoms. …

*Some of the terminology references "Arfwedson, JA" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…周期表元素記号=Li 原子番号=3原子量=6.941±2地殻中の存在度=20ppm(31位)安定核種存在比 6Li=7.42%,7Li=92.58%融点=179℃ 沸点=1317℃比重=0.534電子配置=[He]2s1 おもな酸化数=I周期表第IA族に属するアルカリ金属元素の一つ。1817年スウェーデンのアルフェドソンJohan August Arfwedson(1792‐1841)が葉長石petaliteから発見した。同じアルカリ金属のナトリウムやカリウムが動植物界に存在するのに対し鉱物界から見いだされたことにより,ギリシア語のlithos(石)にちなんで命名した。…

※「Arfwedson,J.A.」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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