Question detail
What is the significance of balancing mass numbers in nuclear equations?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Atoms and nuclear radiation
Question
- A. It ensures the conservation of energy
- B. It ensures the conservation of charge
- C. It ensures the conservation of nucleon number
- D. It ensures the conservation of atomic number
Answer
The correct answer is C: It ensures the conservation of nucleon number.
Explanation
The correct answer is C: It ensures the conservation of nucleon number. This supports the learning objective "Use isotope notation correctly when writing or interpreting nuclear equations." in Nuclear equations because it uses the correct atomic and nuclear radiation relationship for Atoms and nuclear radiation. The other options are less suitable because they do not match the required Nuclear equations idea: It ensures the conservation of energy; It ensures the conservation of charge; It ensures the conservation of atomic number.
Common mistake
Common Mistake in Isotope Notation
Students often confuse the mass number and atomic number when writing isotope notation, leading to incorrect representations of isotopes.
To fix this, remember that the mass number is the total number of protons and neutrons, while the atomic number is just the number of protons. Always place the mass number at the top left and the atomic number at the bottom left of the element symbol.
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