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
百度试题 结果1 题目24. The atomic number of carbon is six. How many electrons (电子) does one atm of carbon have? A. Tv B. Four. C. Six. D. Twelve. 相关知识点: 试题来源: 解析 21∼27ADCBDD优质解答 反馈 收藏
24.The atomic number of carbon is six.How many electrons(电子)doesone atom of carbon have?A.Two.B.Four.C.Six.D.Twelve.24.The atomic number of carbon is six. How many electrons(电子)does one atom of carbon have? A.Two. B. Four. C.Six. D.Twelve. 相关知识点: 试题来源: 解析...
The atomic number for carbon is six; therefore, carbon has ___ protons and ___ electrons. Which of the following is true? A. Atomic weight is determined by the number of electrons in an atom of a given element. B. Atomic weight is determined by the number of protons in an atom of...
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?
· Key DefinitionsRelative Atomic Mass: The average mass of an atom of an element when compared to 1/12th of the mass of an atom of carbon-12.Relative Molecular Mass: The average mass of a molecule when compared to 1/12th of the mass of an atom of carbon-12.#每天学习一点点 #alevel...
mass number (redirected fromAtomic mass number) Thesaurus Medical Legal Encyclopedia Related to Atomic mass number:Isotopes mass number n. The sum of the number of neutrons and protons in an atomic nucleus. Also callednucleon number. American Heritage® Dictionary of the English Language, Fifth Ed...
If 2 atoms with the same atomic number are attached to a given carbon atom,then the next bonded atom is taken into account. 相关知识点: 试题来源: 解析 I could translate it words to words.But it doesn't make any sence.(如果两个原子序数相同的原子联接到一个特定的碳原子上,那么另一个键...
ATOMIC WEIGHTS OF THE ELEMENTS 2007 These tables are based on the 2007 table at Pure Appl. Chem., 81, 2131-2156 (2009) with changes to the values for lutetium, molybdenum, nickel, ytterbium and zinc from the 2005 table. Mass number of the longest-lived isotope of hassium from Phys. Rev...
What is the atomic number of cerium? What is the atomic number of radium? What is the atomic number for californium? What is the atomic number for carbon-13? What is the atomic number of radon? What is the atomic number of scandium?