Iodine is a chemical element; it has symbol I and atomic number 53. The heaviest of the stable halogens, it exists at standard conditions as a semi-lustrous, non-metallic solid that melts to …

Iodine is a naturally occurring element found in sea water and in certain rocks and sediments. There are non radioactive and radioactive forms of iodine. Iodine is used as a disinfectant for …

雙原子碘 （化學式 I2）是 碘 元素的存在形式，由兩個碘 原子 組成。 在 標準情況 下，它是紫色 固體。 雙原子碘會直接 升華，從固態變成 氣態。 它具有 刺激性，必須小心處理。 和其他鹵 …

在碘水溶液中具有杀菌作用的成分为元素碘(i2)、三碘化物的离子(i3-)和次碘酸(hio)，其中hio的量较少，但杀菌作用最强;i2次之;解离的i3-的杀菌作用极微弱。

公式解析：=IF (OR (逻辑1，逻辑2，逻辑…)，真值，假值)，说明：OR在公式中任意满足一个条件即可。 目标：任意学科及格. 步骤1: 点击单元格 “I2”， 输入公式 “=IF (OR …

2025年2月7日 · Iodine exhibits a +5 oxidation state in the moderately strong iodic acid (HIO 3), which can be readily dehydrated to yield the white solid iodine pentoxide (I 2 O 5).

Today, iodine has many commercial uses. Iodide salts are used in pharmaceuticals and disinfectants, printing inks and dyes, catalysts, animal feed supplements and photographic …

2025年2月7日 · iodine (I), chemical element, a member of the halogen elements, or Group 17 (Group VIIa) of the periodic table. In 1811 the French chemist Bernard Courtois obtained a …

2021年3月13日 · Is there any logical way to determine whether $\ce{I-}$ will oxidize to form $\ce{I2}$ or $\ce{IO3-}$ is a reaction ? For example, In reaction of $\ce{KMnO4}$ with $\ce{I …

In emission in electric discharges in the presence of foreign gases, 2740 - 2490 . Also observed for 129 I 2, confirming the vibrational numbering. Emission bands in the region 2240 - 1950 …