The definition for Atomic weight of an element?
The atomic weight basically means the weight of the element. For example, if I'm 97 lbs, that is my weight. Another example would be the atomic weight of carbon is 12.011 because that is how much the carbon weighs.
Atomic weight is used to calculate the number of neutrons in an atom of an element. The number of neutrons is equal to the atomic weight minus the atomic number (the number of protons). The atomic mass of an element is also a weighted average of all of the masses of all of the isotopes of that element.
The atomic number of an element refers to the number of protons in the nucleus of the atom of that element, and is unique to each element. The atomic weight is the weight of an atom of the element compared with the weight of a single proton, and consists of number of protons and neutrons in the nucleus of the atom of that element, and different atoms of the same element can have different numbers…
The atomic weight of each element can be found on most periodic tables. The atomic weight is the same as the atomic mass. Most of the time, this number is found at the bottom of each box, under the chemical symbol for the element. The link below is an example. In this case, 94.95 is the atomic weight. Also below, you will find the periodic table, where you can find all the atomic masses.
The atomic mass of an element is the numerical average of all the masses of the naturally occurring isotopes of that element proportionately. Man made elements do not count in supposedly. IE: If we have an element with atomic weight 100 and we have an isotope of that element with atomic weight 102 and if they occurred equally in nature then the atomic mass would be 101.