the nucleus of the atom
the nucleus
protons and neutrons make up most of the mass in an atom
protons and neutrons make up most of the mass in an atom
The nucleus is the part of an atom that contains practically all its mass. In the nucleus, you can find the proton and neutron. The number of electrons, which move about the nucleus, is equal to the number of protons.
The nucleolus.
The smallest part of an atom would be a quark. Quarks are either up or down quarks, and have virtually no mass. Neutrinos have even less mass, but are not part of an atom.
This would be the NUCLEUS.
Empty space makes up most of the volume of an atom. The nucleus (protons and neutrons) make up most of the mass.
The nucleus makes up most of the mass and the other things in the atom make up the rest.
A quark is what makes up the nuetrons and protons of an atom. So yes, it could be counted as part of an atom.
The mass number is the sum of the protons and neutrons in the atomic nucleus.
In an atom, the atomic part that has a relatively large mass is the nucleus. The nucleus is located at the center of the atom and consists of positively charged protons and uncharged neutrons. The mass of the electrons, which orbit around the nucleus, is much smaller compared to that of the protons and neutrons.