Within the atom's nucleus.
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 mass is the can be determined by the number of protons in an atom. Remember that a proton has an atomic mas number of 1 AMU (atomic mass unit). (The total mass of an atom is the protons, neutrons and electrons combined.)
virtually all the mass in concentrated in the nucleus of the atom, as the electron's mass is so small, it is negligible.
the mass number is number of protons in an atom, plus the number of neutrons.
mass no - atomic no = number of neutrons in an atom.
The mass of an atom is contained primarily in its nucleus.
Protons and neutrons. Virtually all of the atom's mass.
most of the mass is contained in the nucleus.the mass is spread evenly through the whole atom, and the electron cloud.
Essentially all of the atom's mass is in the nucleus. In the lightest atom, that of hydrogen, it's about 99.95 percent. In the heaviest naturally occurring atom, that of Uranium238, it's about 99.979 percent.
When calculating the mass of an atom, you add the mass of the protons and the neutrons. This is the nucleus of the atom. The electrons are small enough to be ignored except in the most delicate calculations.
Since the Earth is not a single atom, nor a collection of similar atoms, it does not have an atomic mass. Atomic mass is a measure of how much matter is contained by a specific atom.
An atom's mass is concentrated in its nucleus, which is located in the center of the atom. Protons and neutrons within the nucleus are responsible for its mass; the electrons, which are located outside of the nucleus, don't contribute to the mass of the atom.
The relative amount of mass an atom contributes to a molecule
The relative amount of mass an atom contributes to a molecule
the nucleus (protons and neutrons)
If the atom's outer boundary is established by the "mean radius of the outermost electron orbital" or something like that, the atom is waaaaaaaaaaay over 99% free space. The hydrogen atom has a diameter over 100,000 times the diameter of the proton in it's nucleus.
Yes. because electrons revolve around the nucleus and have practically negligible mass when compared to the nucleus.