The atomic number of an element is the number of protons in the nucleus of the atom; each element has its own distinct number. The Atomic Mass is the mass of the nucleus of the atom: protons and neutrons. One proton is equivalent to one unit of mass, as is a neutron. You can figure out the number of neutrons in an atom by subtracting the atomic number (number of protons) from the atomic mass; the difference is the number of neutrons.
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 number of elements depends on the number of protons. The atomic number also represents the number of electrons in which equals the number of protons.
The mass number of an isotope of an element is defined as the sum of the numbers of protons and neutrons in the nucleus of each atom of the isotope.
"number of protons in an atomic nucleus"
atomic number = number of protons
mass
the particle that is represent in the mass number is/ sum equals, protons and neutrons.
The mass number is the average total of the number of protons and neutrons in the atomic nuclei of all the isotopes of that element on earth. Thus, the average number of neutrons in that element can be found by subtracting the atomic number from the mass number.
Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.
The sum of all Protons and Neutrons.
atoms
The atoms.
Mass and atoms
mass
the particle that is represent in the mass number is/ sum equals, protons and neutrons.
The nucleus makes up most of the mass and the other things in the atom make up the rest.
Atoms and elements can vary in many ways. Atoms mainly vary by having different numbers of protons, electrons, and neutrons. The count of protons makes up an elements mass number.
The mass number is the average total of the number of protons and neutrons in the atomic nuclei of all the isotopes of that element on earth. Thus, the average number of neutrons in that element can be found by subtracting the atomic number from the mass number.
Protons and neutrons are the primary contributors to an atom's mass. Electrons make up an insignificant amount of mass. Atomic mass is determined by adding the number of protons and neutrons in a nucleus.
Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.
The molar mass is the sum of the atomic weights of atoms contained in the molecule.
The sum of all Protons and Neutrons.