百度试题 结果1 题目What is the atomic number of carbon? A. 6 B. 8 C. 12 D. 14 相关知识点: 试题来源: 解析 A。解析:碳的原子序数是6。选项B,8是氧的原子序数。选项C,12是碳的相对原子质量。选项D,14是硅的原子序数。反馈 收藏
Assign oxidation numbers for each element in the following compounds. a) H_2CO_3 b) Cr_2O_3 c) Fe_2(MnO_4)_3 d) Ca(ClO)_2 e) Zn(NO_2)_2 What is the oxidation state of an individual sulfur atom in so32-? What is the atomic number for carbon dioxide?
What is the formula for the compound tetraphosphorus decoxide? What is the formula for hydrosulfuric acid? What is the biogeochemistry of carbon? What is the name for the compound with the formula As2O5? What is carbon's atomic number?
What is the atomic mass number of carbon-12? How do you find the atomic mass of an element? How do you find the atomic number of an element? What is atomic number, mass number and isotopes? What is the atomic mass of an element?
翻译：碳的原子质量是什么？
What is the symbol for the ion with 19 protons and 18 electrons? If an atom has an atomic number of 8, how many protons will it have? Which element has the highest atomic number? What is a helium-4 atom with no electron? What is the atomic mass/weight of an atom that has 24 pro...
"Shuo Wen Jie Zi". The character "carbon" appeared in China in the 1930s with the development of modern natural sciences, especially the discovery and advancement of chemical elements. It is named after the element with atomic number 6, "C", which is carbon. It is a non-metallic element...
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12. On Earth, carbon-12 accounts for almost 99 percent of naturally occurring carbon. Scientists use atomic mass units, or amu, to measure the mass of elements. Carbon-12 has an amu of exactly 12.000. This number is the reference standard for measuring the atomic mass of all other ...
No matter how many neutrons or electrons it has, an atom with one proton is alwaysatomic number 1and always hydrogen. An atom the contains 6 protons is by definition an atom of carbon. An atom with 55 protons is always cesium. How to Find the Atomic Number ...