AQA GCSE Chemistry Paper 1
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AQA GCSE Chemistry Paper 1 (Triple) 
1. What is the size of an atom's nucleus? 
Answer: Approximately 0.1 nanometers in diameter 
2. Where is the nucleus located within an atom? 
Answer: At the center of the atom 
3. What does the nucleus consist of? 
Answer: Protons and neutrons 
4. What is the charge of a proton? 
Answer: Positive 
5. What is the charge of an electron? 
Answer: Negative 
6. What is the mass of an electron? 
Answer: Essentially zero 
7. What is the charge of a ne...