(Chemistry) the ratio of the average mass per atom of the naturally occurring form of an element to one-twelfth the mass of an atom of carbon-12. Symbol:ArAbbreviation:r.a.m.Former name:atomic weight Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins...
15 The relative atomic mass of an element is determined using a mass spectrometer.(a)Define the term relative atomic mass.(2)Average/mean mass of an atom/ isotopes (1/ 12mass of an atom of) carbon-12(b)The mass spectrum of rubidium is shown below.8070一60-50-Relative40abundance30-20...
Atomic mass unit is one-twelfth the mass of an atom of carbon-12 (12C), the most common carbon isotope. Nonetheless, the termapproximatematters because the masses of individual atoms in elements -- other than carbon -- are not whole numbers (see above examples). This is because mass is ...
What is the atomic mass of carbon?Atomic Mass:Atomic mass is a number that represents the amount of matter in an atom or isotope of a certain element, specifically the number of protons and neutrons. Atomic mass is calculated as an average mass of the different isotopes of each element. ...
Relative atomic mass is a dimensionless physical quantity, the ratio of the average mass of atoms of an element (from a single given sample or source) to12of the mass of an atom of carbon-12 (known as the unified atomic mass unit). ...
There is 12.011 amu of carbon in one molecule of CH{eq}_4 {/eq}. The total atomic mass of the CH{eq}_4 {/eq} molecule is the sum of each atom's...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our exp...
Question: What mass of carbon has the same number of atoms as 78.54 grams of chromium? Molar Mass The molar mass of an atom or a compound is the mass of one mole of that compound. The molar mass of the atom or compound can be used as a conversion factor to convert the m...
1 The relative atomic mass of an element is always D A the mass of an atom of the element relative to z the mass of a carbon-12 atom. B the mass of an atom of the element relative to the mass of a hydrogen atom.□ C the weighted mean mass of an atom of the element relative...
One atomic mass unit (one dalton) equals 1/121/12 the mass of a carbon-12 atom. That makes one atomic mass unit equal to 1.66×10−27 kg1.66×10−27 kg. How to calculate atomic mass? To find a reasonable approximation of the atomic mass of an atom in atomic mass units, we ...