In chemistry, an atomic mass unit or AMU is a physical constant equal to one-twelfth of themassof an unboundatomofcarbon-12. It is a unit ofmassused to expressatomic massesandmolecular masses. When the mass is expressed in AMU, it roughly reflects the sum of the number of protons and n...
atomic mass unit atomic mass unitoramu,in chemistry and physics, unit defined as exactly 1-12 the mass of an atom of carbon-12, theisotopeof carbon with six protons and six neutrons in its nucleus. One amu is equal to approximately 1.66 × 10−24grams. ...
(chemistry) the mass (in atomic mass units) of an isotope of an element 相似短语 atomic mass原子量,原子质量 effective atomic mass有效原子质量 atomic mass unit原子质量单位 atomic mass conversion factor原子质量换算因数 neutron atomic mass中子原子质量 ...
atomic mass- (chemistry) the mass of an atom of a chemical element expressed in atomic mass units atomic weight,relative atomic mass 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 ...
To convert amu to kg, the Royal Society of Chemistry says one atomic mass unit equals1.66×10−27kg.The said conversion is related to the mole and Avogrado's constant. The National Institute of Standards and Technology (NIST) defines amoleas a base unit describing a substance's amount. ...
Notice that the units were listed as amu, which stands foratomic mass units. This unit is based off the mass of the isotope12C (carbon-12). Carbon-12 was chosen as the basis for all of the masses on the periodic table and has been defined to be exactly 12 amu. So all of the othe...
atomic mass unit 美 英 un.原子质量单位;核质量单位 英汉 英英 un. 1. 原子质量单位 2. 核质量单位
Each element on the periodic table has an atomic mass -- an approximation of the mass of a single atom of that element. Because atoms are so small, a specific unit is used to measure the mass of small quantities of atoms. Very large quantities of atoms a
You may be asked to calculate atomic mass in chemistry or physics. There is more than one way to findatomic mass. Which method you use depends on the information you're given. First, it's a good idea to understand what exactly, atomic mass means. ...
mass unit【电】 质量单位 atomic mass conversion factor原子质量换算因数 neutron atomic mass中子原子质量 相似单词 milli mass unit毫质量单位 atomica. 1.原子的,原子武器的 2.核的,核能的 MASS=Manual Analysis Scan System 人工分析扫描系统 Massn. ...