What is the name of the element with symbol Fe? A. Fluorine B. Ferrum C. Iron D. Iodine 相关知识点: 试题来源: 解析 C。符号 Fe 代表的元素是铁,英文名是 Iron。选项 A 氟的元素符号是 F;选项 B 不是常用的元素名称;选项 D 碘的元素符号是 I。反馈 收藏 ...
What element has an atomic number of 10? What element has atomic number 4? What element has the atomic number 1? What is the chemical element fluorine? What is the element AR classified as in the periodic table? What chemical element is named after Alfred Nobel?
What element is fluorine? The elements of which group are nonreactive? What elements are in the same group as lawrencium? What elements on the periodic table are nonmetals? What is Se on the periodic table? What do the elements in each column of the periodic table have in common?
Did you know that you have drank fluorine before? Sodium fluoride (a compound with sodium and fluorine) is in many cities' water. Don't worry, the toxicity of fluorine changes when it joins another element in a compound. There is no scientific research to support that fluoridated water is ...
a对左氧氟沙星、克林霉素、四环素、红霉素等的耐药率均大于90% To left oxygen fluorine Sha Xing, the Kelin mildew element, the tetracyclin, the erythromycin and so on bear the medicine rate to be bigger than 90%[translate] aIt's a wonderful natural ah! 它是一美妙自然的啊![translate] ...
What type of element is element 118? In other words, what is it classified as on the periodic table? Which of the following elements is classified as a semimetal? a. uranium b. fluorine c. calcium d. germanium Classify the following elements as metals, metalloids, or nonmetals: a. Phosph...
a我们发现,食物中缺少锌,铜,碘,氟,硒元素 We discovered that, in food lacks the zinc, the copper, the idodine, the fluorine, the selenium element[translate] aHi,I什么Tom.What什么your name Hi, I any Tom.What any your name[translate]...
The addition of water to fluorine or chlorine gases produces: hydrofluoric (HFl) and hydrochloric acids (HCl) respectively. Each of these acids is quite corrosive and will easily cause damage to eyes and lungs as well as equipment. In Europe, all plenum cable must adhere to Low-Smoke Zero ...
In this definition, fluorine is the most electronegative element while francium is the least electronegative element.Answer and Explanation: As we go towards across a period (right to left), the electronegativity of the elements increase. Similarly, the metallic character decreases in......
of each element. Each row is a period and each column is a group. All groups are given a specific number and many of them are also given a specific name. Elements in a group share certain common chemical properties, including the number of valence electrons present in their neutral atoms....