Atoms are composed of

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BlackTom AI · Accepted Answer

The prompt presents a multiple-choice question about the composition of atoms and lists five options to consider.
Option 1: 'amorphous carbon-like particles' — This description does not match the scientific understanding of atomic structure. Atoms are not amorphous carbon-like particles; they have a specific internal arrangement with a nucleus and orbiting electrons. This choice confuses atomic concept with a description that might apply to certain forms of carbon material but not to atoms in general.
Option 2: 'nuclei with the same number of protons and neutrons' — While some stable isotopes do have balanced numbers of protons and neutrons, this is not a universal property of atoms. Atoms can have different neutron counts relative to protons, and the statement ignores the essential role of electrons surrounding the nucleus. This makes the option inaccurate as a general statement about atoms.
Option 3: 'particles that are always stable and unchanging' — Atoms contain unstable components in some cases (for example, radioactive isotopes or excited states and, more broadly, subatomic particles in certain conditions can undergo transformations). The claim that they are always stable and unchanging is incorrect and oversimplified.
Option 4: 'a nucleus of protons and neutrons orbited by electrons' — This is the standard model of atomic structure: a central nucleus composed of protons and neutrons (collectively called nucleons) with electrons orbiting around it in electron cloud or orbital regions. This description accurately captures the typical arrangement of subatomic particles in atoms.
Option 5: 'debris mostly left over from atomic explosions' — This is inaccurate and sensational; atoms are not defined by remnants from explosions. Atoms are the basic units themselves, not debris from explosions, so this option is clearly incorrect.
Overall, evaluating each choice shows that option 4 aligns with the widely taught model of atomic structure, while the other options contain misconceptions or incorrect generalizations about atoms.

ASTRON 2140 AU2025 (23428) Final - 2025 Dec 12

Atoms are composed of

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