Question 1
Question detail
How many neutrons are in an atom of carbon-14?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Atomic structure
Question
- A. 6
- B. 8
- C. 14
- D. 12
Answer
8
Explanation
Carbon-14 has a mass number of 14 and an atomic number of 6. The number of neutrons is calculated as mass number - atomic number = 14 - 6 = 8.
Common mistake
Misunderstanding Atomic Structure Development
Students often state that atomic structure has remained unchanged over time, failing to recognize historical developments in atomic theory.
To correct this, students should study the progression of atomic models, from Dalton's solid sphere model to Thomson's plum pudding model, Rutherford's nuclear model, and Bohr's model, noting how each contributed to our current understanding. For example, the formula for atomic structure development can be summarized as: 'Historical models + experimental evidence = current atomic theory'. This shows how scientific understanding evolves with new discoveries.
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