Question detail
Which of the following isotopes has 8 neutrons?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes
Question
- A. 16O
- B. 14N
- C. 12C
- D. 10B
Answer
16O
Explanation
The isotope 16O has a mass number of 16 and an atomic number of 8, indicating it has 8 neutrons (16 - 8 = 8).
Common mistake
Confusing Atomic Number and Mass Number
Students often confuse atomic number with mass number when using isotope notation.
Remember that atomic number refers to the number of protons, while mass number is the total of protons and neutrons. Use the notation correctly to distinguish between the two.
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