What is the nucleus of an atom?

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Multiple Choice

What is the nucleus of an atom?

The nucleus is the tiny, dense region at the center of an atom that contains protons and neutrons. This central cluster carries most of the atom’s mass, while the electrons orbit around it in a surrounding electron cloud held in place by the electromagnetic attraction to the positively charged nucleus. So the best description is that the nucleus is the central part of the atom. The other options point to the electrons, or to the space surrounding the atom, which are not the nucleus.

The nucleus is the tiny, dense region at the center of an atom that contains protons and neutrons. This central cluster carries most of the atom’s mass, while the electrons orbit around it in a surrounding electron cloud held in place by the electromagnetic attraction to the positively charged nucleus. So the best description is that the nucleus is the central part of the atom. The other options point to the electrons, or to the space surrounding the atom, which are not the nucleus.

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