The chemical element with atomic number 20 is calcium. What is the abbreviation for calcium? A. Ca B. Cy C. Cg D. Ch 相关知识点: 试题来源: 解析 A。钙元素的英文是 calcium,其缩写形式是 Ca。选项 B“Cy”不是钙元素的缩写;选项 C“Cg”一般不是任何化学元素的缩写;选项 D“Ch”一般不是...
What elements have properties similar to calcium? What is the atomic number of calcium? What is the chemical symbol for calcium in the periodic table of elements? What type of compound is calcium oxide? What is the atomic mass of calcium?
The chemical symbol for an element involves one or two letters, with the first letter always capitalized. It usually is an abbreviation of the element's name, but some symbols are based on ancient names for the element. An example of this is Pb for lead, basing the symbol on the Latin ...
The chemical symbol for calcium, the fifth most abundant element in the earth's crust. CA A white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals CA A state in the western United St...
Which of the following elements is a nonmetal? a. K b. Be c. Ce d. N What type of element is argon? In other words, what is it classified as on the periodic table? Write the symbol for each element and classify it as a metal, non metal, or metalloid? a. Gold b. Fluorine c...
Examples of modernelementsymbols include H forhydrogen, He forhelium, and Ca forcalcium. The first letter of an element symbol is capitalized, while the second letter is lowercase. An example of a deprecated element symbol is Cb for columbium, the former name of the element niobium, or Nb....
Ca - Calcium Element Symbols and Numbers 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 ...
Element symbols also can refer to alchemy symbols for the elements or to the symbols used to describe isotopes. Examples Examples of modern element symbols include H forhydrogen, He forhelium, and Ca forcalcium. The first letter of an element symbol is capitalized, while the second letter is ...
9.An electron dot diagram of an element is shown below, with the periodic table of group 1 & 2. Is the element more reactive than calcium? Why? Is it more reactive than cesium (Cs)? Why?___
Nitrogen Uses and Properties - Nitrogen is a diatomic gas with atomic number 7 and symbol N. Know the nitrogen atomic number, the atomic mass of nitrogen and atomic weight of nitrogen. Explore the Uses of Nitrogen.