The unit for Atomic Mass is 1/12 from the mass of the isotope 12C.
The relative atomic mass is 83.798. So where did you get that it is not determined.
Atomic mass is determined by mass spectrometry.
atomic mass is determined by adding the number of protons and neutrons.this can be seen in the periodic table as the average atomic mass below the name of the element
The number of protons and neutrons in the atom can be determined from the atomic mass. The atomic mass represents the average mass of the isotopes of that element in atomic mass units.
By subtracting the atomic mass and atomic number
neutrons in an atom's nucleus. It is measured in atomic mass units (amu) and provides the total mass of an atom. The atomic mass is approximately equal to the sum of the protons and neutrons in the nucleus, as the mass of electrons is negligible.
By the atomic mass
The atomic mass of an element is determined by calculating the weighted average of the masses of its isotopes, taking into account their relative abundance.
The atomic weight (not mass) of sodium is 22,989 769 28(2).
Atomic mass of an atom is determined by the combined masses of its protons, neutrons, and electrons. Protons and neutrons contribute most of the mass, as they are much heavier than electrons. The atomic mass is usually given in atomic mass units, where 1 unit is defined as 1/12 the mass of a carbon-12 atom.
The atomic mass of isotopes is determined by mass spectrometry.
the Atomic Mass in g/ml is the molar mass of the element