a nucleus cant be a central atom. the nucleus is part of the atom. you are probably talking about why certain atoms are central atoms in a molecule and why some arent. the answer to that question is that the more electronegative atom will always appear as a central atom.
The nucleus is the central part of the atom. (It's in the center)
The nucleus is the positively charged central mass of an atom.
The nucleus is the central part of the atom. (It's in the center)
... is called the nucleus.
The nucleus is the answer.
The central area of an atom is called the nucleus. It contains protons and neutrons, which are tightly bound together. The nucleus makes up the majority of an atom's mass and is surrounded by a cloud of electrons.
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.
The Nucleus
The nucleus.
nucleus
The nucleus.
nucleus