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Figure 3 shows the structure of an oxygen-14 atom - Edexcel - GCSE Physics Combined Science - Question 4 - 2016 - Paper 1
Question 4
Figure 3 shows the structure of an oxygen-14 atom. (i) Complete the four labels on Figure 3. (ii) Which of these particles has a negative charge? A alpha particl... show full transcript
Worked Solution & Example Answer:Figure 3 shows the structure of an oxygen-14 atom - Edexcel - GCSE Physics Combined Science - Question 4 - 2016 - Paper 1
Step 1
Complete the four labels on Figure 3
Answer
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The label for the center of the atom should be 'nucleus', which contains protons and neutrons.
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The particles inside the nucleus are labeled as 'protons' and 'neutrons', with a focus on the number of protons (8) and neutrons (6) for oxygen-14.
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The labels for the outer circles represent 'electron shells', where electrons are located.
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Finally, the outermost layer should contain ‘electrons’, representing the three electrons in oxygen.
Step 2