Study for the Dental Radiology Foundation Chain and Physics Test. Enhance your skills with flashcards and multiple-choice questions, complete with hints and explanations. Prepare for your success!

Multiple Choice

Which term describes the central core of the atom?

The essential idea is identifying what sits at the very center of an atom. The dense center is called the nucleus, composed of protons and neutrons. Protons give this core its positive charge, neutrons add mass, and together they account for nearly all of the atom’s mass. Electrons, carrying negative charge, surround this core in regions we describe as orbitals or the electron cloud, not at the center. Because of this arrangement, the central core is described by the term nucleus.

The essential idea is identifying what sits at the very center of an atom. The dense center is called the nucleus, composed of protons and neutrons. Protons give this core its positive charge, neutrons add mass, and together they account for nearly all of the atom’s mass. Electrons, carrying negative charge, surround this core in regions we describe as orbitals or the electron cloud, not at the center. Because of this arrangement, the central core is described by the term nucleus.