What does the atomic mass of an atom represent?

Atomic mass represents the mass of atom. We use mass of protons and neutrons.

the total weight of an atom

it is the mass of the atom at rest

The atomic mass represent how much the element atom weighs.

How big the atom is, how much mass it has

The atomic mass of an element is measured not in the mass of the atom, but in the number of grams per mole.

The atomic number is the number of protons in an atom. The mass number is the number of protons plus neutrons in an atom.

The mass number is the sum of protons and neutrons in the atomic nucleus of a chemical element.

this is the net mass of the atom, the proton number + neutron number

Since atomic mass of carbon is 12, so the atomic mass of your atom=the mass of you atom/mass of carbon atom*12

Atomic mass is the mass of all parts of the atom and is measured in its own unit atomic units or AU. This number just happens to be the same as 1 mole of said atom in grams. The mole is avagadro's number of atoms approx 6.022 x10^23.

Atomic mass is the mass of an atom in atomic mass units, and includes protons, neutrons, and electrons; and atomic number is the number of protons in the nucleus of the atom.

The number of protons (or electrons) an atom has. To find out how many neutrons there are take the atomic number and subtract it from the atomic mass... (atomic mass)-(atomic number)= neutrons atomic number= #of protons (or #of electrons)

the mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.

The atomic mass of an atom is the combined mass of the protons and neutrons in the nucleus.