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 partic... 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.
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Answer
The central part of the atom is the nucleus, which should be labeled as 'Nucleus'.
The protons are positively charged particles within the nucleus, labeled as 'Proton'.
The neutrons, which are neutral particles also found in the nucleus, should be labeled as 'Neutron'.
The electrons are negatively charged particles that orbit around the nucleus, so this should be labeled as 'Electron'.
Step 2
Which of these particles has a negative charge?
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Answer
The particle that has a negative charge is the B electron.