Iodine (iodine)

Japanese: ヨウ素(沃素) - ようそ（英語表記）iodine

Periodic table Element symbol = I Atomic number = 53 Atomic weight = 126.9045 Abundance in the earth's crust = 0.5 ppm (58th) Stable nuclide abundance ratio ¹²⁷ I = 100% Melting point = 113.6°C Boiling point = 184.4°C Specific gravity of solid = 4.93 (25°C) Specific gravity of liquid = 3.71 (185°C) Critical temperature = 546°C Solubility in water = 0.029g/100g (20°C), 0.078g/100g (50°C) Solubility in carbon tetrachloride = 4.55g/100g (50°C) Solubility in carbon disulfide = 12.7g/100g (20°C) Solubility in benzene = 19.0g/100g (30°C) Solubility in ethyl alcohol = 4.71mol% (25°C) Electron configuration = [Kr]4d ¹⁰ 5s ² 5p ^5Main oxidation numbers = -I, I, V, VIIOne of the halogen elements belonging to group VIIB of the periodic table, also known as iodine.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

周期表元素記号＝I　原子番号＝53原子量＝126.9045地殻中の存在度＝0.5ppm(58位)安定核種存在比　¹²⁷I＝100％融点＝113.6℃　沸点＝184.4℃固体の比重＝4.93(25℃)液体の比重＝3.71(185℃)臨界温度＝546℃水に対する溶解度＝0.029g/100g(20℃)，0.078g/100g(50℃)四塩化炭素に対する溶解度＝4.55g/100g(50℃)二硫化炭素に対する溶解度＝12.7g/100g(20℃)ベンゼンに対する溶解度＝19.0g/100g(30℃)エチルアルコールに対する溶解度＝4.71mol％(25℃)電子配置＝［Kr］4d¹⁰5s²5p⁵おもな酸化数＝－I，I，V，VII周期表第VIIB族に属するハロゲン元素の一つで，ヨードともいう。

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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