The mass.
If you also know the element number you can figure out the number of neutrons (provided its an isotopic mass rather than an average mass).
The Atomic Mass of an element tells you the average mass of an atom in the element.
the atomic number is the number of protons/electrons in the atom
the atomic number is the number of protons/electrons in the atom
Atomic number tells the number of protons and electrons, but i don't remember for atomic mass.
when atomic mass of an element expressed in gram atom is called gram atom mass . and formula is number of gram atom=given mass (in gram) by atomic mass ( in gram )
you can't tell the atomic mass of an atom if either the number of protons or neutrons is missing. But Boron with 5 protons and 6 neutrons has and atomic mass of 11.
Atomic number tells the number of protons and electrons, but i don't remember for Atomic Mass.
Atomic number tells the number of protons and electrons, but i don't remember for Atomic Mass.
The mass number of an atom is equal to the sum of its number of protons and neutrons, simply, nucleons.
The mass number of an atom is equal to the sum of its number of protons and neutrons, simply, nucleons.
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.
No, an atom of aluminum and an atom of gallium do not have the same atomic mass. Aluminum has an atomic mass of approximately 26.98 atomic mass units, while gallium has an atomic mass of approximately 69.72 atomic mass units.