Question 1
Question detail
What evidence led to the conclusion that the nucleus contains protons?
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 isotopes
Question
- A. The discovery of the electron
- B. Alpha particle scattering experiments
- C. The plum pudding model
- D. Chemical reactions
Answer
Alpha particle scattering experiments
Explanation
Alpha particle scattering experiments provided evidence that the positive charge of the nucleus is concentrated in a small area, leading to the identification of protons.
Common mistake
Confusing Protons and Neutrons
Students often confuse protons and neutrons, thinking they have the same charge or role in the nucleus.
Remember that protons are positively charged and determine the atomic number, while neutrons have no charge and contribute to the mass number.
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