The nucleus.
Atoms that do not have any protons are called neutrons.
Atoms which have different number of protons and neutrons but have the same molecular weight are called Isobars.
The sum of protons and neutrons in an atom is called mass number.
The central core of an atom is called the nucleus. It is made up of protons and neutrons, which are held together by strong nuclear forces. Electrons orbit around the nucleus in specific energy levels.
Two atoms with the same number of protons but different numbers of neutrons are called "isotopes".
Neutrons, protons and electrons are the parts of Atoms.
Atoms themselves are made up of three kinds of smaller particles, called protons, neutrons and electrons. The protons and neutrons are in the middle of the atom.
The nucleus.
Atoms consist of protons, neutrons, and electrons. Protons and neutrons, in turn, are made up of quarks.Atoms consist of protons, neutrons, and electrons. Protons and neutrons, in turn, are made up of quarks.Atoms consist of protons, neutrons, and electrons. Protons and neutrons, in turn, are made up of quarks.Atoms consist of protons, neutrons, and electrons. Protons and neutrons, in turn, are made up of quarks.
Atoms of the same element cannot have different numbers of protons. Different numbers of protons mean different elements. An atom with the a different number of neutrons is called an isotope.
The atom's central region is called the nucleus. It contains protons and neutrons, which are the particles that make up the majority of an atom's mass. Electrons orbit around the nucleus in different energy levels.
All atoms have neutrons, protons and electrons.