百度试题 结果1 题目What element's symbol is Na? A. Sodium B. Sodion C. Sodier D. Sodone 相关知识点: 试题来源: 解析 A。元素符号 Na 代表 Sodium(钠)。不存在 Sodion、Sodier 和 Sodone 这三种元素。反馈 收藏
百度试题 结果1 题目What element's symbol is Cu? A. Cuprum B. Copperum C. Coppery D. Coppion 相关知识点: 试题来源: 解析 A。元素符号 Cu 代表 Cuprum(铜)。不存在 Copperum、Coppery 和 Coppion 这三种元素。反馈 收藏
What chemical element is Na? What chemical element is Ni? What chemical element has 19 electrons? Which chemical element has the symbol As? Which chemical element has the symbol Be? What chemical element is W? What chemical element is Sb?
This symbol could represent which of the following elements? a) P b) Ca c) Si d) Na e) Ne f) S g) Cl h) Al In the periodic table, K is the symbol for which element? What is an element in chemistry? What is the chemical symbol for the element silver?
The negation symbol is a unary logical operator. It simply reverses the truth value of a given statement. Thus, if a statement is represented as A, then ¬A is the logical opposite or negation of A. Thus, ¬A = not A If A = true, ¬A = false ...
The element which is used in making semiconductors and has the symbol Si. What is its English name? A. Sodium B. Silicon C. Strontium D. Selenium 相关知识点: 试题来源: 解析 B。解析:用于制造半导体,化学符号为Si的元素是Silicon(硅)。Sodium(钠)的符号是Na,Strontium(锶)的符号是Sr,Selenium(...
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 ...
The basic strategy is to try to insert the weight everywhere in the proof of the convergence of (1) and adapt as needed. The weighted averages are bilinear averages associated to the bilinear symbol In the unweighted case, results from the additive combinatorics theory of Peluse and Prendi...
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The number of the element is its atomic number, which is the number of protons in each atom of that element. The element symbol is a one- or two-letter abbreviation of the element's name. Sometimes it refers to an old name. (For instance, K is for kalium.) ...