百度试题 结果1 题目What element's symbol is Fe? A. Ferrum B. Ferrous C. Ferric D. Ferronium 相关知识点: 试题来源: 解析 A。元素符号 Fe 代表 Ferrum(铁)。Ferrous 和 Ferric 分别是亚铁和铁离子;不存在 Ferronium 这个元素。反馈 收藏 ...
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
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(...
In the equation 2Al+3H₂SO₄=Al₂(SO₄)₃+3H₂↑, what element symbol represents aluminum? A. H B. S C. Al D. O 相关知识点: 试题来源: 解析 C。在方程式 2Al+3H₂SO₄=Al₂(SO₄)₃+3H₂↑中,Al 代表铝元素。选项 A 是氢元素符号;选项 B 是硫元素符号;选项 D...
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 ...
For either set, the element-of symbol can be used to indicate that an object belongs to that set. For instance, the following expression shows how 3 is related to set A: 3∈ A The expression can be read as "3 is an element of set A," "3 is a member of set A," "3 is in ...
In the periodic table, K is the symbol for which element? What element has a symbol of B? What is the atomic number of the element that should theoretically be the noble gas below Rn? What does the atomic number of an element indicate?
What chemical element is denoted by the symbol Si? Chemical Elements: A chemical element is a substance that is made of only one kind of atom. When reduced to a single atom of the substance, it will retain the same chemical properties as any other amount of the substance. ...
An element symbol is a one- or two-letter abbreviation for a chemical element name. When a symbol consists of two letters, the first letter is always capitalized, while the second letter is lowercase. Element symbols also can refer to alchemy symbols for the elements or to the symbols used...
What is the symbol for the element that is in group VIIIA(18)and period6? What is the symbol for the element that is in groupIB(11)and period4? What is the symbol for the element that is in group IIA(2)and period5?