What is Atomic Mass?

Answer 1

The deemed "mass" of an atom of a certain element. Considered to be the sum of the number of neutrons plus the number of protons in that atom, since electrons have insignificant mass.

Answer 2

The mass of a neutral atom of a nuclide. The atomic weight of an atom is the weight of the atom based on a scale where 12C = 12. The atomic weight of an element is the weighted average of each isotope.

Answer 3

1) The mass of a neutral atom of a nuclide. The atomic weight of an atom is the weight of the atom based on a scale where 12C = 12. The atomic weight of an element is the weighted average of each isotope

2)The mass of an atom usually expressed as atomic mass unit (amu).

Answer 4

atomic mass

of a chemical element is the mass of an atom at rest, most often expressed in unified atomic mass units. The atomic mass is often synonymous with relative atomic mass, average atomic mass and atomic weight; however, it is subtly different in that it can either be the abundance-weighted average of isotope masses of an element or the mass of a single isotope.

relative atomic mass

(also known as atomic weight and average atomic mass) is the average of the atomic masses of all the chemical element's isotopes as found in a particular environment, weighted by isotopic abundance. Periodic tables usually list these with reference to the local environment of Earth's crust and atmosphere. An uncertainty in parenthesis is often included. For artificial elements the nucleon count of the most stable isotope is listed in brackets as the atomic mass.

Below is a great Table that shows you All the Atomic Mass of all the Known Elements! Fun stuff.

Answer 5

its the ratio of the mass of an atom of some element to the mass of carbon-12 isotope. :) hope this helped

Answer 6

proton mass+neutron mass+electron mass of an atom is known as atomic mass

Answer 7

I think it's the specific, identifiable configuration of what any particular type of matter is composed. ( I think. )