the nucleus and everything in the nucleus
like protons and neutrons
The weight of an atom is primarily determined by the total number of protons and neutrons in its nucleus. Electrons, which have negligible mass, also contribute to the atom's weight but to a much smaller extent.
no an atom is a part of a molecule.
atom<cell
No region has all the weight, but the vast majority of the mass of an atom is in the nucleus.
An atom of oxygen has twice the weight of an atom of nitrogen since the atomic weight of nitrogen is around 14 amu (atomic mass units), while the atomic weight of oxygen is around 16 amu.
None Even electrons have weight
The electron is the part of the atom that accounts for electricity.
the nucleus of an atom
The nucleus. The nucleus contains both of the protons and neutrons of an atom, and make up more than 99% of the atoms matter and weight. If size is talking about measurements of width and space taken up, the outer ring of the atom, the electrons, span out away from the nucleus, orbiting it in an elliptical shape. The electrons of an atom are not physically attached to the atom, and can be arguably not part of the specific atom because the electrons can become intertwined with other atoms' electrons.
The number of protons and neutrons controls the weight of an atom.
1 ton
6