Question detail

What is the significance of the neutron in isotopes?

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

Atoms and isotopes

Question

A. Neutrons determine the charge of the atom.
B. Neutrons affect the stability of the nucleus.
C. Neutrons are responsible for chemical reactions.
D. Neutrons have no effect on the atom.

Answer

The correct answer is B: Neutrons affect the stability of the nucleus..

Explanation

The correct answer is B: Neutrons affect the stability of the nucleus.. This supports the learning objective "Explain that isotopes of an element have different mass numbers because they contain different numbers of neutrons." in Mass number, atomic number and isotopes because it uses the correct atomic and nuclear radiation relationship for Atoms and isotopes. The other options are less suitable because they do not match the required Mass number, atomic number and isotopes idea: Neutrons determine the charge of the atom.; Neutrons are responsible for chemical reactions.; Neutrons have no effect on the atom..

Common mistake

Misunderstanding Isotope Mass Numbers

Students often confuse isotopes by thinking they have the same mass number.

Remember that isotopes of an element have different mass numbers due to varying numbers of neutrons.

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