百度试题 结果1 题目Which element is represented by the symbol “Fe”? A. Iron B. Gold C. Silver D. Copper 相关知识点: 试题来源: 解析 A。解析:元素符号“Fe”代表铁(Iron)。金是“Au”,银是“Ag”,铜是“Cu”。反馈 收藏
Which element has the symbol 'K' and is important for nerve function? A. Krypton B. Potassium C. Silicon D. Sulfur 相关知识点: 试题来源: 解析 B。解析:化学符号为'K'且对神经功能重要的元素是Potassium(钾)。Krypton(氪)的符号是Kr,Silicon(硅)的符号是Si,Sulfur(硫)的符号是S。这题考查元素...
A. Neon B. Nickel C. Nitrogen D. Sodium 相关知识点: 试题来源: 解析 A。解析:Neon(氖)是一种惰性气体,符号为“Ne”。B选项Nickel(镍),符号为“Ni”;C选项Nitrogen(氮),符号为“N”;D选项Sodium(钠),符号为“Na”,所以答案为A。反馈 收藏 ...
The element with the symbol 'K' is in which period of the periodic table? A. Period 1 B. Period 2 C. Period 3 D. Period 4 相关知识点: 试题来源: 解析 C。解析:元素符号为“K”的钾元素位于周期表的第三周期。第一周期元素为氢、氦,第二周期元素为锂、铍等,第四周期元素有钾之后的钙等...
百度试题 结果1 题目Which chemical element symbol is used in making fertilizer? A. N B. Cl C. Br D. I 相关知识点: 试题来源: 解析 N。氮(N)元素用于制造肥料。氯(Cl)用于消毒等,溴(Br)用于阻燃剂等,碘(I)用于医药等。反馈 收藏
Which element has the second-highest electronegativity? ___. Electronegativity: The electronegativity of an atom of an element is a measure of the force with which the atom pulls on the shared electrons in a covalent bond. The index is important to investigate t...
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For example, it generates the (1,1.1,1.2) display such as an LCD, operation within the inner element (10), for example, a symbol to display a button or key cap top (11, image (12) It is proposed that is projected onto a) within. In order to do not want to be affected by (1...
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What name is given to the elements with atomic numbers greater than 92?Choose the BEST answer to the following. Which of these three elements has the most mass? (a) Hydrogen. (b) Iron. (c) Uranium. (d) Same in each.Which element has ...