How to use in-sentence of “atomic mass”:
+ The isotope with an atomic mass of 279 has a half life of 180 milliseconds and Ds-281 has a half life of 11.1seconds.
+ Protons and neutrons have nearly equal masses, and their combined number, the mass number, is about equal to the atomic mass of an atom.
+ Its atomic mass is 1.00794amu, making hydrogen the lightest element.
+ Instead, atomic mass is expressed in unified atomic mass units.
+ The average of the weights of each isotope is what give cerium its atomic mass of 140.12.
+ Its atomic number is 9, and its atomic mass is 19.
+ The atomic mass of Lithium is 6.939.
Example sentences of “atomic mass”:
+ We find the relative atomic mass of a sample of an element by working out the abundance-weighted mean of the relative isotopic masses.
+ It has an atomic number of 28 and an atomic mass of about 58.69amu.
+ Carbon has atomic mass 12 and atomic number 6.
+ We find the relative atomic mass of a sample of an element by working out the abundance-weighted mean of the relative isotopic masses.
+ It has an atomic number of 28 and an atomic mass of about 58.69amu.
+ Carbon has atomic mass 12 and atomic number 6.
+ Its atomic number is 17, and its atomic mass is 35.45.
+ The atomic mass of an element can be used to see how much of the element makes a mole.
+ Its atomic number is 48 and its atomic mass is 112.4.
+ Relative isotopic mass is similar to isotopic mass and has exactly the same numerical value as isotopic mass, whenever isotopic mass is expressed in atomic mass units.
+ Its atomic mass is 85.47.
+ It should have an atomic mass around 490.
+ The isotopes with an atomic mass from 267 to 273 have very short half-lifes.
+ The atomic mass of sodium is 22.9898; if it is rounded, it would be 23.
+ Its relative atomic mass is exactly 12.
+ For example, the atomic mass of copper is about 63.55.
+ Its atomic mass is 200.59.
+ Chadwick noticed that the atomic number of the elements was lower than the total atomic mass of the atom.
+ Its atomic mass is 121.8.
+ As mentioned above, note that the atomic mass of an atom is not the same as its mass number.