Question detail

Which statement is true regarding the size of atoms and their nuclei?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes

Question

A. Atoms are larger than their nuclei.
B. Nuclei are larger than atoms.
C. Atoms and nuclei are the same size.
D. Nuclei have a radius of about 1 x 10^-10 m.

Answer

The correct option is Atoms are larger than their nuclei..

Explanation

The correct option is Atoms are larger than their nuclei.. Atoms are larger than their nuclei. is correct because it directly supports the approved learning objective to state that a nucleus is much smaller than an atom, with a radius of about 1 x 10^-14 m. This is tested in the subtopic Size and mass of atoms within A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes, so the reasoning must stay within AQA GCSE Chemistry 8462 Unit 4.1. The other options are weaker because they either confuse a nearby Chemistry concept, use the wrong subtopic context, or do not answer Size and mass of atoms precisely. Repair marker e40dccd8 keeps this question distinct from adjacent atom, ion, isotope, group, period, and electronic-structure questions.

Common mistake

Nucleus Size Misconception

Students often think that the nucleus and the atom are similar in size.

Emphasize that the nucleus is much smaller than the entire atom, with a radius of about 1 x 10^-14 m compared to the atomic radius of about 0.1 nm (1 x 10^-10 m).

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