richardii differ significantly in their relative carbon and nitrogen masses, resulting in significantly dissimilar C:N ratios between the sexes. Average gametophyte dry mass in ameristic males was approximately half that of meristic plants of the same age, and contained less N than meristic ...
(Chemistry) the sum of all the relative atomic masses of the atoms in a molecule; the ratio of the average mass per molecule of a specified isotopic composition of a substance to one-twelfth the mass of an atom of carbon-12. Symbol:MrAbbreviation:r.m.m.Former name:molecular weight ...
The relative atomic mass of an element is defined as the weight in grams of the number of atoms of the element contained in 12.00 g of carbon-12. From: Newnes Engineering and Physical Science Pocket Book, 1993 About this pageSet alert ...
(chemistry) the ratio of the atomic mass of an element to half the atomic mass of carbon 相似短语 relative atomic mass相对原子质量 atomic mass原子量,原子质量 relative atomic weight相对原子量 effective atomic mass有效原子质量 atomic mass unit原子质量单位 ...
Re: Relative atomic mass «Reply #2 on:July 23, 2019, 04:23:18 PM » If I grasp the question properly: it's because an atom of carbon-12 has 12 nucleons, 6 protons plus 6 neutrons (and 6 electrons). So the atomic mass unit is the mass of one nucleon. ...
What is the relationship between relative mass and molar mass? Molar mass is the mass of one mole of atoms of the element . Relative mass is average mass of one atom of that element compared to 1/12 of mass of one carbon-12 atom I don't understand how they are equal. Can someone ...
这就是说的相对分子质量的事 肯定能翻译过来吧 基本意思就是说 一个氢原子的的质量是碳12原子质量的12分之一，所以氢的相对原子质量为1 镁原子的质量是碳原子质量的2倍，所以镁原子的相对原子质量是24.可能你不知道这个东西：国际规定把一个碳-12原子的质量分为12等份，（碳原子有好几种，其中有...
Answer to: Give three reasons why carbon is preferred over hydrogen in the relative atomic mass of an atom. By signing up, you'll get thousands of...
Find the relative mass of any atom by adding the number of protons to the number of neutrons. Hydrogen has a relative atomic mass of 1, and carbon-12 has a relative atomic mass of 12. Isotopes of the same element have different numbers of neutrons, so you need to calculate for one spe...