【题目】The atomic weight of oxygen is___than ___of the hydrogen. A. 15 times heavier; that B. 15 times heavier: those C. 16 times as heavier; that D. 16 times as heavy; those 试题答案 【答案】A 【解析】 试题分析:考查倍数表达法。句意:氧原子是氢原子重量的16倍。is 16 times ...
What is roentgenium's atomic mass? What is the atomic mass of aluminum? What is the atomic mass of carbon? What is the atomic mass of oxygen-18? What is the chemical element titanium? What is the atomic mass of californium? How many atoms of titanium are in 27.9 grams of titanium?
Clue Alien Element Table salt is made of NaCl Kt and By make table salt Kt and By The atomic mass (lightness or heaviness) increases as you move left to right and down the periodic table Pf is the lightest element, El is the heaviest Pf, El What did you learn ? Clue Alien Element ...
mass- the property of a body that causes it to have weight in a gravitational field combining weight,eq,equivalent weight,equivalent- the atomic weight of an element that has the same combining capacity as a given weight of another element; the standard is 8 for oxygen ...
Clue Alien Element Table salt is made of NaCl Kt and By make table salt Kt and By The atomic mass (lightness or heaviness) increases as you move left to right and down the periodic table Pf is the lightest element, El is the heaviest Pf, El What did you learn ? Clue Alien Element ...
What is the mass of one carbon atom in atomic mass unit(amu)What is the mass of one carbon atom in grams(g)What is the mass of one oxygen atom in amu?What is the mass of one oxygen atom in gThe sample of hydrogen has a mass of 1.01 amu?How many...
In this study, single-crystal X-ray diffraction measurements on a laser-heated sample of molecular nitrogen were performed and the structure of ζ-N2was solved and refined at 63, 70 and 86 GPa. ζ-N2is found to have a monoclinic unit cell and an atomic arrangement close to that of ε...
An element's atomic mass is equal to the sum of the individual particle masses of an atom. Atoms have three basic particles which include protons, neutrons, and electrons. The standard unit for measuring atomic mass is the Dalton (u). ...
英语翻译What is the mass of one carbon atom in atomic mass unit(amu)What is the mass of one carbon atom in grams(g)What is the mass of one oxygen atom in amu?What is the mass of one oxygen atom in gThe sample of hydrogen has a mass of 1.01 amu?Ho
The atomic weight of an atom, or the molecular weight of a molecule, is its mass relative to that ofa___ atom. This is essentially equal to the number of protons plus neutrons that the atom or molecule contains. A oxygen B hydrogen C helium D carbon 相关知识点: 试题来源: 解析 B ...