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...
Chemical elements may be named after famous scientists. Which element is named after Marie Curie? A. Curium B. Cadmium C. Calcium D. Carbon 相关知识点: 试题来源: 解析 A。锔(Curium)是以玛丽·居里(Marie Curie)和皮埃尔·居里(Pierre Curie)命名的。镉(Cadmium)、钙(Calcium)、碳(Carbon)都不是...
What type of chemical element is magnesium? What is the electron configuration for calcium? What type of compound is calcium carbonate? Is calcium a metal? What is the electronegativity of calcium? What type of element is nihonium? What is calcium chloride?
C is the chemical symbol for which element with the atomic number 6? What is a chemical symbol in science? What is the chemical symbol for calcium in the periodic table of elements? What is the chemical symbol for actinium? What is the chemical symbol of tin?
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D-calcium pantothenate known as pantothenic acid, is a typical nutritional fortification substance of the B-complex vitamins that can participate the basic metabolism and the synthesis of fatty acids of body.
The scientific study of matter's characteristics and behaviour is known as chemistry.andare different from the normal vocabulary. It is a branch of natural science that examines the building blocks of matter, including the atoms, molecules, and ions that make up compounds and their composition, ...
Zinc (Zn) is an essential trace element in living organisms and plays a vital role in the regulation of both microbial virulence and host immune responses. A growing number of studies have shown that zinc deficiency or the internal Zn concentration does not meet the needs of animals and microb...
What are the physical properties of calcium carbonate? What should you use to extinguish a magnesium fire? What gives an element its characteristics? Describe the chemical properties of table salt (NaCl). Do strontium, magnesium, ...
What does the electronegativity of an element indicate? What is the electronegativity of oxygen? What is the electronegativity of calcium? What is the electronegativity of magnesium? What is the electronegativity of phosphorus? What is the electronegativity of iodine?